Lethal Weapon ( TV series ) - wikipedia Lethal Weapon ( TV series ) Lethal Weapon Genre Comedy - drama Buddy cop Action Police procedural Based on Lethal Weapon by Shane Black Developed by Matt Miller Starring Damon Wayans Clayne Crawford Jordana Brewster Keesha Sharp Kevin Rahm Johnathan Fernandez Chandler Kinney Dante Brown Michelle Mitchenor Seann William Scott Maggie Lawson Theme music composer Vo Williams Composer ( s ) Josh Kramon Ben Decter Tree Adams Robert Lydecker Country of origin United States Original language ( s ) English No. of seasons No. of episodes 40 ( list of episodes ) Production Executive producer ( s ) Matt Miller Dan Lin Jennifer Gwartz McG Producer ( s ) Kelly Van Horn Production location ( s ) Los Angeles, California Cinematography Ramsey Nickell David Moxness Editor ( s ) Matt Barber Running time 42 - 46 minutes Production company ( s ) Good Session Productions Lin Pictures ( seasons 1 & 2 ) Rideback ( season 3 ) Warner Bros. Television Distributor Warner Bros. Television Distribution Release Original network Fox Original release September 21, 2016 ( 2016 - 09 - 21 ) -- present External links Website Lethal Weapon is an American buddy cop action comedy - drama television series developed by Matt Miller and based on the franchise of the same name created by Shane Black. The show premiered on Fox on September 21, 2016 and has run for two seasons, with a third season upcoming. For its first two seasons, Lethal Weapon starred Damon Wayans as Roger Murtaugh and Clayne Crawford as Martin Riggs, mismatched detective partners who were also the main characters in the film series, originally played by Danny Glover and Mel Gibson. The series includes other characters directly or loosely inspired by characters from the films, including Leo Getz ( played by Thomas Lennon ) -- a close friend of Riggs and Murtaugh. In May 2018, amidst reports of bad behavior and incidents of hostility between cast and crew on the show 's set, Crawford was fired from the show. It was subsequently reported he will be replaced by Seann William Scott, as a new character named Wesley Cole. Contents 1 Synopsis 2 Cast and characters 2.1 Main 2.2 Recurring 3 Episodes 3.1 Series overview 3.2 Season 1 ( 2016 -- 17 ) 3.3 Season 2 ( 2017 -- 18 ) 4 International broadcast 5 Production 5.1 Casting 6 Reception 6.1 Critical reception 6.2 Ratings 6.2. 1 Season 1 ( 2016 -- 17 ) 6.2. 2 Season 2 ( 2017 -- 18 ) 7 Home media 8 References 9 External links Synopsis Roger Murtaugh, an aging detective with a wife and three children, is partnered with Martin Riggs, a younger, somewhat unstable detective whose wife and unborn child were recently murdered. While Riggs ' devil - may - care methods of collaring criminals puts his and Murtaugh 's lives in danger on a regular basis, the two are able to develop a respect and friendship. Cast and characters Main Damon Wayans as Roger Murtaugh, a senior Los Angeles Police Department Detective who returns to the force after recovering from a heart attack and is partnered with Texas transfer Martin Riggs. He is married with three children ( two teenagers and a toddler ). He is a native of Inglewood, California, and currently resides in Sherman Oaks. He carries a Heckler & Koch USP as his duty weapon, in early episodes, and later switches to a Glock. In `` Family Ties '', Murtaugh is promoted to Captain after Avery decides to step down in order to run for office. He was originally played by Danny Glover in the film series. Clayne Crawford as Martin Riggs ( seasons 1 -- 2 ), a Navy SEAL - turned - police officer from El Paso, Texas. He moves to Los Angeles after the death of his wife and unborn child, transferring from the El Paso County Sheriff 's Office to the LAPD 's Robbery - Homicide Division. Riggs lives in a trailer on the beach, drives a 1977 Ford F - 350, and his weapon of choice is the Beretta 92F, very similar to his movie counterpart. He was originally played by Mel Gibson in the film series. Seann William Scott as Wesley Cole ( season 3 ), a war veteran and father who moves to Los Angeles to be closer to his child. The character shares the same surname as Lorna Cole, Riggs ' love interest played by Rene Russo in the film series. Jordana Brewster as Dr. Maureen Cahill, the police department 's psychologist who treats Det. Riggs ( and occasionally Det. Murtaugh ). Although sometimes she is referred to as a psychiatrist and prescribes drugs ( for example in `` Better Living Through Chemistry '' ). The character is based on Dr. Stephanie Woods played by Mary Ellen Trainor in the film series. Keesha Sharp as Trish Murtaugh, Det. Murtaugh 's loving wife and mother of his three children who works as a defense attorney. In the season one episode `` As Good As It Getz '', Trish quits her job after being passed over for managing partner at her law firm. She was originally played by Darlene Love in the film series. Kevin Rahm as Captain Brooks Avery, the Commanding Officer of Robbery - Homicide Division. Before his promotion, Capt. Avery was partners with Det. Murtaugh. In `` Lawmen '', it is revealed that years ago he and a Los Angeles County Sheriff 's Department deputy ( Malcolm - Jamal Warner ) planted evidence to convict a murderer after previous evidence was excluded from trial ; he was prepared to resign over the incident when it came to light, but Murtaugh convinced him to stay because if his impropriety was revealed it would mean that all of Avery 's cases ( many of which he worked with Murtaugh ) would be reviewed if not overturned entirely. The character is based on Captain Ed Murphy played by Steve Kahan in the film series. Johnathan Fernandez as Bernard Scorsese, a medical examiner, forensic scientist and aspiring screenwriter who works alongside Dets. Murtaugh and Riggs. Michelle Mitchenor as Detective Sonya Bailey, a fellow detective with Robbery - Homicide Division. She is partnered with Det. Alex Cruz during the first season and Det. Zach Bowman during the second season. Chandler Kinney as Riana Murtaugh, Det. Murtaugh 's teenage daughter. The character is based on Rianne Murtaugh, played by Traci Wolfe in the film series. Dante Brown as Roger `` RJ '' Murtaugh Jr., Det. Murtaugh 's teenage son. He graduated from high school at the end of season 1 and briefly attended college before dropping out during season 2. The character is based on Nick Murtaugh, played by Damon Hines in the film series. Recurring Thomas Lennon as Leo Getz, a comedic ambulance - chasing lawyer who once worked in the District Attorney 's office before being fired. He befriends Murtaugh ( and to a lesser extent, Riggs ) after he witnesses a client 's murder, and is put under their protection. His friendship with the duo is strengthened in the second - season episode `` Let it Ride '' where he works with them again and Murtaugh assures Leo that they do n't have to be on a case to be friends. Getz is partially inspired by the character of the same name played by Joe Pesci in the film series. Hilarie Burton as Karen Palmer ( seasons 1 -- 2 ), a DEA agent who sometimes works with Riggs and Murtaugh on drug trafficking cases, and is also Riggs ' love interest. The two break up early in season 2. Floriana Lima as Miranda Riggs ( née Delgado ) ( seasons 1 -- 2 ), Det. Riggs ' late wife, who is seen in flashbacks. Originally from the Los Angeles area, she moved to Texas when she married Riggs, and after her death, he moved to LA and joined the LAPD. The character is based on Victoria Riggs from the film series, although she was never seen as she had already died before the events of the first film. Richard Cabral as Detective Alejandro `` Alex '' Cruz ( season 1 ), formerly an undercover officer with the LAPD 's Gang Division who once worked at the Robbery - Homicide Division. Tony Plana as Ronnie Delgado ( seasons 1 -- 2 ), the Los Angeles City Attorney and Det. Riggs ' father - in - law. He is stabbed in prison in the Season 2 episode `` Diggin ' Up Dirt '', and dies in the hospital. Andrew Patrick Ralston as Jim McNeile, a dentist and neighbor of the Murtaughs. Michelle Hurd as Gina Santos ( season 2 ), a police big shot who arrives to take control of the division as chief, superseding the authority of Captain Avery. She and Murtaugh had previously partnered as detectives on a stakeout. Andrew Creer as Detective Zach Bowman ( season 2 ), a young detective who starts working at the precinct. He is soon partnered with Bailey. Leo Getz condescendingly calls them `` The B - team '', which the naïve Bowman thinks is because their last names both start with `` B ''. Kristen Gutoskie as Molly Hendricks ( season 2 ), Riggs ' childhood friend and the ex-wife of his old best friend Jake, who has been in and out of prison. Riggs and Molly have a brief relationship that Riggs ends when he sees his work is putting Molly and her son in danger. They later are able to reconcile. Rex Linn as Nathan Riggs ( season 2 ), Martin Riggs ' abusive father. Chase Mangum as Young Martin Riggs ( season 2 ) Sophia Woodward as Young Molly Hendricks ( season 2 ) Duncan Joiner as Ben ( season 2 ), Molly 's son via her ex-husband Jake. Peter Coventry Smith as Garrett Riggs ( season 2 ), Riggs ' half - brother. Maggie Lawson as Natalie Flynn ( season 3 ) Episodes Series overview Season Episodes Originally aired Average U.S. viewers ( millions ) First aired Last aired 18 September 21, 2016 ( 2016 - 09 - 21 ) March 15, 2017 ( 2017 - 03 - 15 ) 6.54 22 September 26, 2017 ( 2017 - 09 - 26 ) May 8, 2018 ( 2018 - 05 - 08 ) 4.11 13 September 25, 2018 ( 2018 - 09 - 25 ) TBA TBA Season 1 ( 2016 -- 17 ) No. overall No. in season Title Directed by Written by Original air date Prod. code U.S. viewers ( millions ) `` Pilot '' McG Story by : Matt Miller & Shane Black Teleplay by : Matt Miller September 21, 2016 ( 2016 - 09 - 21 ) T15. 10138 7.93 A slightly unhinged widower and former Navy SEAL lands a job as a police officer in Los Angeles where he is partnered with a veteran detective who is trying to maintain a low stress level in his life. `` Surf N Turf '' McG Matt Miller September 28, 2016 ( 2016 - 09 - 28 ) T13. 20102 7.23 Murtaugh and Riggs are sent to deal with a noise complaint at a party. And when they arrive there are shots fired. They chase the shooter only he was killed. They go back to the Captain who is with an ATF agent who tells them the weapon that was used is strictly for military use, which means someone got their hands on some and are trying to sell it. Riggs upon looking over what happened does n't think the one who was killed is the target. They think it 's someone else, a woman. They track her down and learn she 's from Russia and pregnant. She tells them that a few months ago she got involved with a guy and she caught him trying to unload the guns and when he saw her, he tried to kill her that 's why she ran. And evidently, the shooter was there to sell the gun when he saw her and told probably the guy she was there, who told him to take care of her. They put her in protective custody while they try to find out were the guns came from. Murtaugh finally learns about Riggs and his wife. `` Best Buds '' Steve Boyum Gene Hong October 5, 2016 ( 2016 - 10 - 05 ) T13. 20103 6.62 Riggs and Murtaugh follow a violent case involving a drug cartel, theft, two killings and, unfortunately, Murtaugh 's old T.O., Ned Brower. As the case unfolds, it turns out that Ned is more involved than just driving the cash, which leaves Murtaugh with an inevitably dangerous decision to make. Looking for back - up, the duo turns to Cruz for help. In the midst of all the chaos, Riggs continues to depend on outside vices, rather than face the reality of Miranda 's death, while Murtaugh and Trish struggle to find alone time. Miranda Riggs appears as a vision to Riggs early in the episode and at the very end he remembers walking up to her parents home with her for the first time. `` There Goes the Neighborhood '' Jason Ensler Adele Lim October 12, 2016 ( 2016 - 10 - 12 ) T13. 20104 6.84 A string of burglaries hits close to home for Murtaugh when one occurs in his own neighborhood, and it gets just as personal for Riggs when another break - in ends in a casualty. Meanwhile, Roger Junior connects with an old friend who might be twisted up in some criminal action of his own. 5 5 `` Spilt Milk '' Larry Teng Seamus Kevin Fahey October 19, 2016 ( 2016 - 10 - 19 ) T13. 20105 6.66 Murtaugh delves deep into the psyche of a former navy seal who is wanted for criminal activity, and draws parallels between him and his partner, Riggs, who also served in the military. Riggs ' connection to the suspect threatens to interfere with the case, but it also forces him to open up to Murtaugh. 6 6 `` Ties That Bind '' Antonio Negret Erik Mountain November 9, 2016 ( 2016 - 11 - 09 ) T13. 20106 7.02 When Riggs and Murtaugh investigate a high - profile case surrounding the murder of a young model, they uncover a vicious secret behind the locked mansion gates of one of LA 's wealthiest families. Riggs gets a jolt from his past when he discovers that an old friend of his wife has ties to the case. Back at home, Murtaugh is shocked to hear that his daughter is sending provocative photos to her new boyfriend. 7 7 `` Fashion Police '' Rob Seidenglanz Kyle Warren November 16, 2016 ( 2016 - 11 - 16 ) T13. 20107 6.60 As Riggs and Murtaugh examine the murder of one of L.A. 's fashion expeditors, they follow a trail of evidence that leads them to an ongoing and exceptionally dangerous underground investigation led by the DEA agent Karen Palmer ( Hilarie Burton ). In the meantime, Trish and the kids are off visiting colleges, leaving Murtaugh to a `` bender '' of his own, while Riggs has trouble sleeping through the night due to his all - too - real dreams of Miranda. 8 8 `` Can I Get a Witness ? '' Jason Ensler Amanda Green November 30, 2016 ( 2016 - 11 - 30 ) T13. 20108 6.43 When a million dollar casino heist takes a deadly turn, Riggs befriends the only credible witness, an eight - year - old boy, and takes him into his care. On the flip side, Murtaugh pulls some dangerous stunts in an attempt to prove to everyone that he can be a motorcycle guy. Meanwhile, Riggs contemplates what to do with the money he received from selling his home in Texas. 9 9 `` Jingle Bell Glock '' Steve Boyum Joe Smith December 7, 2016 ( 2016 - 12 - 07 ) T13. 20110 6.26 The whole precinct 's holiday celebrations are cut short when they 're called to examine a ruthless homicide linked to Eddie Flores ( Raul Casso ), the deranged nephew of a notable drug lord who has a previous history with Riggs. The holiday season weighs heavily on Riggs, who flashes back to past Christmas with his former wife, Miranda. Murtaugh is also a little preoccupied with his neighbor 's obnoxious holiday decorations. 10 10 `` Homebodies '' Michael Fields Alex Taub January 4, 2017 ( 2017 - 01 - 04 ) T13. 20111 6.30 Riggs and Murtaugh end up in the middle of a turf war as they investigate the murder of a millennial `` designer drug '' dealer. 11 11 `` Lawmen '' Sylvain White Andy Callahan January 11, 2017 ( 2017 - 01 - 11 ) T13. 20109 6.48 Riggs and Murtaugh are pitted against the LA Sheriff 's department. 12 12 `` Brotherly Love '' Uta Briesewitz Stacy A. Littlejohn January 18, 2017 ( 2017 - 01 - 18 ) T13. 20112 6.29 Riggs and Murtaugh get involved with a notorious auto theft ring after a car containing a large amount of cocaine is stolen from the impound lot. 13 13 `` The Seal is Broken '' Nathan Hope Adele Lim & Gene Hong January 25, 2017 ( 2017 - 01 - 25 ) T13. 20113 6.28 Riggs and Murtaugh investigate a series of violent crimes targeting members of the same church ; the anniversary of Miranda 's death weighs on Riggs ; Trish and Roger butt heads with R.J. 14 14 `` The Murtaugh File '' Matt Barber Seamus Kevin Fahey February 8, 2017 ( 2017 - 02 - 08 ) T13. 20114 6.25 A car crash reveals that Cahill is the target of a murderous stalker ; Riggs finds Murtaugh 's file in Cahill 's office and becomes obsessed with finding out about his past ; Roger and Trish discover their daughter has a fake ID. 15 15 `` As Good As It Getz '' Nick Copus Rob Wright February 15, 2017 ( 2017 - 02 - 15 ) T13. 20115 6.37 Riggs and Murtaugh are forced to work with DEA agent Karen Palmer again, to protect Leo Getz, an ambulance - chasing attorney who was linked to the Cartel. As the three delve further into the case, they begin to realize that Leo may not be the only one with a target on his back. In the meantime, Riggs begins to view Agent Palmer in a new light while Murtaugh is left worried after Trish makes a spontaneous decision. 16 16 `` Unnecessary Roughness '' Bethany Rooney Laura Putney & Margaret Easley February 22, 2017 ( 2017 - 02 - 22 ) T13. 20116 6.26 A murder involving a high school football phenomenon draws Riggs and Murtaugh into the lucrative - and corrupt - world of college recruiting. Meanwhile, Murtaugh considers a big change in his professional life, and Riggs contemplates an even bigger shift in his personal life, as he spends more time with DEA Agent Karen Palmer. 17 17 `` A Problem Like Maria '' Rob Bailey Alex Taub March 8, 2017 ( 2017 - 03 - 08 ) T13. 20117 5.93 Riggs and Murtaugh team up again with DEA Agent Karen Palmer, and together they gain inside knowledge of dangerous new cartel operations. As Riggs ' attachment to Palmer deepens, so do his impulsive actions, further worrying Captain Avery and Delgado. In the meantime, Trish explores the potential of an amazing new career opportunity. 18 18 `` Commencement '' Steve Boyum Matt Miller & Kyle Warren March 15, 2017 ( 2017 - 03 - 15 ) T13. 20118 6.02 After making a startling discovery that pertains to Miranda 's death, Riggs heads to Mexico and the cartel in search of answers. Worried about Riggs, Murtaugh is seen driving into the night to Mexico. Season 2 ( 2017 -- 18 ) No. overall No. in season Title Directed by Written by Original air date Prod. code U.S. viewers ( millions ) 19 `` El Gringo Loco '' Steve Boyum Matt Miller & Kyle Warren September 26, 2017 ( 2017 - 09 - 26 ) T13. 20701 4.37 Murtaugh intercepts Riggs just as he is preparing to shoot and kill Tito Flores, the drug lord responsible for Miranda 's death. He convinces Riggs to bring Tito back to the U.S. alive, in the trunk of Murtaugh 's car. When they prepare to turn Tito over to U.S. authorities, however, they open the trunk and discover Tito has been shot in the head and killed. 20 `` Dancing in September '' Rob Bailey Alex Taub October 3, 2017 ( 2017 - 10 - 03 ) T13. 20702 4.10 Riggs and Murtaugh respond to the death of a plastic surgeon, drawing them into a case involving an illegal drug ring run out of a wellness clinic. The case has Riggs reconnecting with Agent Karen Palmer, who has been given desk work at the DEA ever since she leaked the Tito Flores file to Riggs. Karen, blind - sided by her greed to get out of the desk work, hijacks the investigation by interfering with Riggs job only to realize that she is not as efficient as she thinks she is. Begrudgingly, she blames Riggs for it. Riggs, knowing her ego, says he is sorry even though he knows that it was not his fault. Elsewhere, RJ is packing for college and seems reluctant to live on campus, until he learns that his dorm building is co-ed, which then has dad and mom concerned. 21 `` Born to Run '' Nathan Hope Stacy A. Littlejohn October 10, 2017 ( 2017 - 10 - 10 ) T13. 20703 3.89 Riggs and Murtaugh, along with young detective Zach Bowman ( Andrew Creer ), investigate when the bodyguard of famous pop singer Shaye ( Joanna Levesque ) is murdered. The detectives uncover a secret relationship between Shaye and the bodyguard, along with an even bigger secret in Shaye 's past. Meanwhile, Riggs and Palmer struggle to find normalcy in their relationship. 22 `` Flight Risk '' Omar Madha Seamus Kevin Fahey October 17, 2017 ( 2017 - 10 - 17 ) T13. 20704 3.79 A lifelong con man ( Adrian Pasdar ) robs the passengers on a private plane at gunpoint while it is airborne, then leaps out with a parachute, taking a victim with him. Riggs and Murtaugh learn that the con man is dying and wanted one last haul to help his daughter after he 's gone, but one stolen item ( a briefcase full of uncut diamonds ) has attracted a group of violent criminals. Meanwhile, Santos questions Avery 's ability to lead, given his top detectives ' penchant for danger. 23 5 `` Let it Ride '' Eric Laneuville Rob Wright November 7, 2017 ( 2017 - 11 - 07 ) T13. 20705 4.06 Riggs and Murtaugh investigate a death that occurs moments before the victim 's bet wins a horse race. The victim is Howard, a friend of Leo Getz. While it appears that Howard had a stroke, Getz is convinced it 's murder, which Scorcese later proves to be true. Meanwhile, the city tows Riggs ' trailer off the beach, bringing back painful childhood memories of being evicted. 24 6 `` Gold Rush '' Steve Boyum Terence Paul Winter November 14, 2017 ( 2017 - 11 - 14 ) T13. 20706 3.84 Riggs helps his childhood friend Jake ( Linds Edwards ) get paroled from prison, but it soon becomes apparent that Jake is up to no good again. Noticing that Riggs gives Jake a lot of leeway, Murtaugh asks his partner if he owes his old pal a favor. Elsewhere, Murtaugh tries to find out which of his family members left a marijuana joint in a package of cookies, while Bailey gives Bowman a hard time just because he rejected her after she accidentally sent him a sext. 25 7 `` Birdwatching '' Salli Richardson - Whitfield Elizabeth Davis Beall November 21, 2017 ( 2017 - 11 - 21 ) T13. 20707 3.86 Riggs and Murtaugh work on the case of a dead surfer who just came into town from San Diego the day before. Bailey and Bowman help, and Bailey wonders why Bowman is treated like a hero in the beach town. Meanwhile, Murtaugh becomes suspicious of Trish 's relationship with her charity ball co-chair `` Scott '', until he learns it is ex-NBA star Scottie Pippen. Also, Riggs deals with recurring nightmares. 26 8 `` Fork - Getta - Bout - It '' Matt Barber Michael C. Martin & Joe Smith November 28, 2017 ( 2017 - 11 - 28 ) T13. 20708 4.89 Riggs and Murtaugh investigate a murder involving a couple and a New York mobster, Frank Truno. Scorsese reveals a movie script he has been writing, after he found out that the case revolves around the mafia. However, Murtaugh dislikes the way Scorsese accurately portrays him as one of the characters. Meanwhile, Riggs is taken aback when his childhood friend Molly ( Kristen Gutoskie ) suggests that they could have been romantically involved. 27 9 `` Fools Rush In '' Eric Laneuville Kyle Warren & Eileen Jones December 5, 2017 ( 2017 - 12 - 05 ) T13. 20709 4.50 Jonah ( Derek Richardson ), a man with schizophrenia who believes that Elvis Presley is alive and controlling Hollywood 's traffic, is running away from Riggs and Murtaugh after being suspected of murder. However, when he proves his theory, Riggs and Murtaugh must stop an organized heist conducted by men dressing as Presley. At the same time, Murtaugh tries to get his daughter into at an esteemed pre-school and Riggs gets scared when his relationship with Molly becomes romantic. 28 10 `` Wreck the Halls '' Steve Boyum Katie Varney December 12, 2017 ( 2017 - 12 - 12 ) T13. 20710 4.08 Murtaugh is ready for his family holiday in Hawaii until Diego, a young man he once helped, is murdered. Riggs and Murtaugh confront Grant Davenport ( Martin Donovan ), the president of an American upper class club where Diego was employed, who has ties to the Aryan fraternity. However, their confrontation causes the fraternity to ambush both of them. Murtaugh manages to subdue his attackers, but Riggs is only able to escape because of his father 's assistance. 29 11 `` Funny Money '' Nathan Hope Alex Taub January 2, 2018 ( 2018 - 01 - 02 ) T13. 20711 4.55 Riggs and Murtaugh take on a counterfeiting ring and are joined on the case by veteran Secret Service Agent Peterson ( Ernie Hudson ). A group of three teenagers inadvertently get involved when they witness a shooting and run off with the phony cash and plates. One of the teenagers named Ty ( Nathan Davis Jr. ) strikes a chord with Riggs after revealing he 's homeless. Meanwhile, Riggs brings home a dog for Ben and Molly. Molly later finds the dog dead with its neck snapped. Sensing it 's a message from his father, Riggs goes to confront him in prison. Also, Roger and Trish learn that RJ has been cutting classes at college. 30 12 `` Diggin ' Up Dirt '' Maja Vrvilo Seamus Kevin Fahey & Joe Smith January 9, 2018 ( 2018 - 01 - 09 ) T13. 20712 4.26 Shortly after Gene Nakahara ( C.S. Lee ) meets with Trish and an uninvited Leo Getz to announce he is running against Councilman Sean O'Brien ( Michael Reilly Burke ) for Mayor of Los Angeles, Gene is killed when his car blows up. Riggs and Murtaugh learn of a private investigator named Serrano ( Tim Kang ) who works as a `` fixer '' for high - profile people and investigate that angle, while Trish and Leo work behind the scenes to reveal skeletons in O'Brien's closet. Riggs also learns that his late wife Miranda once visited Serrano to get info on Riggs ' father. 31 13 `` Better Living Through Chemistry '' Rob Bailey Zev Borow January 16, 2018 ( 2018 - 01 - 16 ) T13. 20713 5.03 Dr. Cahill begins to question her abilities when two patients of hers die in separate incidents, until it is learned that they were briefly roommates in the same psych facility. Riggs and Murtaugh uncover corruption in the facility related to the medications both patients were taking. At the same time, Santos ( Michelle Hurd ) learns that Riggs had an anger incident caught on tape in which he destroyed the deputy mayor 's car, and requests that Cahill sign an affidavit confirming that Riggs is still fit for duty. Elsewhere, Trish and Roger see that RJ has become depressed and withdrawn after dropping out of college, and decide to take their son to a therapist. 32 14 `` Double Shot of Baileys '' John Behring Stacy A. Littlejohn January 23, 2018 ( 2018 - 01 - 23 ) T13. 20714 4.55 Detective Bailey 's younger sister Jess ( Alisha Wainwright ) inadvertently gets caught up with a drug mob when she and her boyfriend use her waitress position at a high - end night club to steal a man 's wallet. After the boyfriend is killed over the wallet 's contents, Bailey walks a thin line between her obligation to the law and protecting her sister. Elsewhere, Murtaugh helps Riana spy on her boyfriend, whom she accuses of cheating, while Riggs loses his truck after a night of heavy drinking. 33 15 `` An Inconvenient Ruth '' Larry Teng Kyle Warren February 6, 2018 ( 2018 - 02 - 06 ) T13. 20715 4.35 A elderly drifter named Ruthie ( Swoosie Kurtz ) is present at a jewelry store robbery, and becomes a key witness in the case. In the process, she and Riggs, who has recently vowed to stay sober, bond over their alcoholism. Meanwhile Murtaugh, fresh off being called `` grandpa '' at the playground while with his toddler, starts acting like Riggs and takes dangerous risks to prove he 's not getting old. This gets him on Trish 's bad side. 34 16 `` Ruthless '' Silver Tree Carlos Jacott February 27, 2018 ( 2018 - 02 - 27 ) T13. 20716 4.13 Riggs and Murtaugh track a group of criminals who stole numerous guns during a shoot - up at a police buy - back event. They locate and capture the group 's leader, Booker ( Sheaun McKinney ), only to learn that he 's working undercover for ATF. Avery learns from Booker 's boss that Booker is a bit of a loose cannon, much like Riggs. Meanwhile, Riggs learns a little more about Ruthie 's past and family situation, as Roger and Trish continue to fight at home. 35 17 `` The Odd Couple '' Larry Teng Elizabeth Davis Beall & Eileen Jones March 6, 2018 ( 2018 - 03 - 06 ) T13. 20717 4.00 With Riggs trying to get Murtaugh to make up with Trish and get out of his trailer, the two only make things worse when they ruin a public building implosion for Trish 's latest project. An angry Trish tells the two that her client, grocery store magnate Henry Butler ( Michael McGrady ), now wants to bail on the project. Riggs convinces Butler to stay in town by inviting him to dinner. Riggs and Murtaugh discover that Butler is the man behind the murder, and Trish eventually also learns that her client is dirty. This leads to a wild adventure when Riggs and Murtagh board Butler 's private jet as he 's trying to flee. Later on, Riggs confesses that he wants more out of their relationship, but Molly insists that Riggs must first resolve the issues with his father. 36 18 `` Frankie Comes to Hollywood '' John Behring David Fury April 10, 2018 ( 2018 - 04 - 10 ) T13. 20718 4.14 About 16 years ago, Frankie Kelso ( Jude Ciccolella ), a contract killer, decided to show mercy on Murtaugh after the latter tried to arrest him at the scene of a hit. In the present, Murtaugh notices Kelso 's signature at the scene of another killing. He captures Kelso, but the latter is able to get the upper hand and take Murtaugh hostage. Kelso insists that he is retired and that someone framed him for the recent crime. Riggs recognizes the name of one of Kelso 's mob connections as someone who spent time in prison with his father, Nathan ( Rex Linn ). Riggs then reluctantly contacts his father to get the information he needs to save Murtaugh. However, his action caused the mobs to declare war on Riggs ' father by attacking him in prison. 37 19 `` Leo Getz Hitched '' Nick Copus Rob Wright April 17, 2018 ( 2018 - 04 - 17 ) T13. 20719 3.59 Leo is getting married to Nina ( Shakira Barrera ), an ex-con, but she bails on the day of the wedding. Riggs and Murtaugh find her with a group of criminals trying to unload a bag of cocaine that `` fell into '' her purse at a high - stakes poker game run by a known mobster. At the same time, Riggs learns that Molly met with her ex-husband Jake, who is still a fugitive, and that Jake was at the same poker game. When Riggs catches up with Jake, the latter reveals he is planning to rob the safe at the poker game with two other conspirators. Elsewhere, Murtaugh is distraught over finding a positive pregnancy test in the trash can outside his home. 38 20 `` Jesse 's Girl '' Clayne Crawford Seamus Kevin Fahey & Joe Smith April 24, 2018 ( 2018 - 04 - 24 ) T13. 20720 4.28 A break - in at a mansion turns deadly, and Roger and Trish are surprised to learn that Riana may be involved. It turns out that Phoebe, the sister of Riana 's new boyfriend Jesse ( Daniel DiVenere ), is in possession of stolen diamonds from the heist and has become a target. Meanwhile, Riggs tries to be a good father figure for Ben, as he recalls the things he and Molly discussed in their teen years. 39 21 `` Family Ties '' Nick Copus Alex Taub May 1, 2018 ( 2018 - 05 - 01 ) T13. 20721 3.09 With Avery away at a conference, Murtaugh is appointed interim captain. His first case involves the kidnapping of Lisa Conlon, wife of a pharmaceutical magnate. Riggs is forced to get his father involved when its revealed that the Aryan Fraternity of Texas ( AFT ) is behind the crime. In the process, Riggs learns that he has a 19 - year - old half - brother, Garrett ( Peter Coventry Smith ), who is assisting the AFT. In exchange for his help, Riggs ' father is let out of prison early. His comments to Riggs suggests that he plotted the whole kidnapping to get an early release. Meanwhile, Commissioner Debra tells Murtaugh that he is being promoted to full - time captain, as Avery will not be returning. 40 22 `` One Day More '' Steve Boyum Matt Miller & Katie Varney May 8, 2018 ( 2018 - 05 - 08 ) T13. 20722 3.15 While Murtaugh visits Riggs, the latter 's trailer is shot up by two men on motorcycles. The investigation leads back to Grant Davenport where Riggs and Murtaugh discover that Riggs ' father is the former 's bodyguard. Later on, a suspect tells Riggs that Murtaugh was the target of the shootout and Trish 's senior partner in her workplace has been laundering money for the AFT. Riggs ' father immediately kidnaps Trish. Riggs and Murtaugh release Riggs ' half - brother, Garrett, to exchange him for Trish. During the exchange, Murtaugh manages to save Trish, Riggs kills his father and Garrett escapes. Afterwards, during a celebration party, Riggs tells Trish that he is moving back to Texas with Molly and Ben. However, during a visit to his wife 's grave, Garrett shows up and shoots Riggs in the chest. International broadcast In United Kingdom, ITV started airing the series beginning on March 3, 2017. Its viewing figures remained consistent with around 2.5 million tuning in each week. Series 2 started January 12, 2018. In Australia, the Nine Network premiered the series on January 29, 2017. In the Philippines, it premiered on June 10, 2017 on ABS - CBN and ended on September 9, 2017. Only 14 episodes were aired. In Hong Kong, the TVB Pearl premiered the series with switchable dual - language in original English and local Cantonese version on October 11, 2017. In India, Zee Café premiered the first season on 29 September 2016. In Brazil, it has appeared since September 22, 2017 on the Warner Channel Brasil and on the open TV on Rede Globo Production The series was ordered on May 10, 2016 and premiered on Fox on September 21, 2016. On October 12, 2016, Fox picked up the series for a full season of 18 episodes. On February 22, 2017, Fox renewed the series for a 22 - episode second season, which premiered on September 26, 2017. On May 13, 2018, the series was renewed for a 13 - episode third season, with Seann William Scott replacing Clayne Crawford as the series ' lead, playing a new character. Casting On February 12, 2016, Damon Wayans was cast as Roger Murtaugh. On February 19, 2016, Golden Brooks was cast as Trish Murtaugh. On March 3, 2016, Jordana Brewster was cast as Dr. Maureen Cahill. On March 7, 2016, Kevin Rahm was cast as Captain Avery. On March 10, 2016, Clayne Crawford was cast as Martin Riggs. On March 15, 2016, Chandler Kinney was cast as Riana Murtaugh. On March 17, 2016, it was announced that Keesha Sharp would take over the role of Trish Murtaugh from Brooks. Also on March 17, Johnathan Fernandez was cast as Scorsese. When the pilot was picked up to series, Johnathan Fernandez was made a series regular. Though showrunner Matt Miller has expressed interest in making Leo Getz ( Thomas Lennon ) a series regular at some point, the character is confirmed to be making frequent guest appearances throughout season two. In May 2018, it was reported that Crawford had been dismissed from the show for on - set behavioral issues, and that the producers were looking to replace him for a potential third season. On May 13, 2018, Seann William Scott was cast as the new co-lead ahead of a third season renewal and will be playing a new character named Wesley Cole. Reception Critical reception Lethal Weapon has received mixed to positive reviews from critics. Review aggregator Rotten Tomatoes reported a 65 % approval rating, with an average rating of 5.35 / 10 based on 40 reviews. The consensus says, `` Lethal Weapon 's overly polished production values and tired narrative are somewhat overcome by solid chemistry between its two leads. '' On Metacritic, the first season has a weighted average of 56 out of 100 based on 24 reviews, indicating `` mixed or average reviews. '' Ratings Season Timeslot ( ET ) Episodes First aired Last aired TV season Rank Avg. viewers ( millions ) 18 -- 49 rating ( average ) Date Viewers ( millions ) Date Viewers ( millions ) Wednesday 8 : 00 pm 18 September 21, 2016 ( 2016 - 09 - 21 ) 7.93 March 15, 2017 ( 2017 - 03 - 15 ) 6.02 2016 -- 17 35 8.63 2.2 / 8 Tuesday 8 : 00 pm 22 September 26, 2017 ( 2017 - 09 - 26 ) 4.37 May 8, 2018 ( 2018 - 05 - 08 ) 3.15 2017 -- 18 90 5.38 1.3 Tuesday 9 : 00 pm 13 September 25, 2018 ( 2018 - 09 - 25 ) TBA TBA ( TBA ) TBA 2018 -- 19 TBD TBD TBD Season 1 ( 2016 -- 17 ) No. Title Air date Rating / share ( 18 -- 49 ) Viewers ( millions ) DVR ( 18 -- 49 ) DVR viewers ( millions ) Total ( 18 -- 49 ) Total viewers ( millions ) `` Pilot '' September 21, 2016 2.2 / 8 7.93 1.0 3.16 3.2 11.09 `` Surf N Turf '' September 28, 2016 2.0 / 8 7.23 0.8 2.68 2.8 9.91 `` Best Buds '' October 5, 2016 1.7 / 6 6.62 0.9 2.62 2.6 9.24 `` There Goes the Neighborhood '' October 12, 2016 1.9 / 7 6.84 0.9 N / A 2.8 N / A 5 `` Spilt Milk '' October 19, 2016 1.7 / 6 6.66 0.9 2.81 2.6 9.47 6 `` Ties That Bind '' November 9, 2016 1.8 / 6 7.02 0.8 2.62 2.6 9.64 7 `` Fashion Police '' November 16, 2016 1.7 / 6 6.60 0.8 2.64 2.5 9.25 8 `` Can I Get a Witness ? '' November 30, 2016 1.6 / 6 6.43 0.8 2.75 2.4 9.17 9 `` Jingle Bell Glock '' December 7, 2016 1.4 / 5 6.26 0.8 2.75 2.2 9.00 10 `` Homebodies '' January 4, 2017 1.5 / 5 6.30 0.8 2.82 2.3 9.03 11 `` Lawmen '' January 11, 2017 1.4 / 5 6.48 0.7 2.40 2.1 8.88 12 `` Brotherly Love '' January 18, 2017 1.4 / 5 6.29 0.8 2.54 2.2 8.83 13 `` The Seal is Broken '' January 25, 2017 1.4 / 5 6.28 0.8 2.70 2.2 8.98 14 `` The Murtaugh File '' February 8, 2017 1.3 / 5 6.25 N / A 2.44 N / A 8.69 15 `` As Good As It Getz '' February 15, 2017 1.4 / 5 6.37 0.7 2.52 2.1 8.89 16 `` Unnecessary Roughness '' February 22, 2017 1.4 / 5 6.26 0.7 2.57 2.1 8.83 17 `` A Problem Like Maria '' March 8, 2017 1.2 / 5 5.93 0.7 2.36 1.9 8.28 18 `` Commencement '' March 15, 2017 1.3 / 5 6.02 0.7 2.55 2.0 8.57 Season 2 ( 2017 -- 18 ) No. Title Air date Rating / share ( 18 -- 49 ) Viewers ( millions ) DVR ( 18 -- 49 ) DVR viewers ( millions ) Total ( 18 -- 49 ) Total viewers ( millions ) `` El Gringo Loco '' September 26, 2017 1.2 / 5 4.37 N / A 2.75 N / A 7.12 `` Dancing in September '' October 3, 2017 1.1 / 4 4.10 N / A 2.66 N / A 6.76 `` Born to Run '' October 10, 2017 1.0 / 4 3.89 N / A 2.59 N / A 6.48 `` Flight Risk '' October 17, 2017 0.9 / 4 3.79 N / A 2.63 N / A 6.42 5 `` Let it Ride '' November 7, 2017 1.0 / 4 4.06 0.7 2.76 1.7 6.81 6 `` Gold Rush '' November 14, 2017 1.0 / 4 3.84 N / A 2.54 N / A 6.40 7 `` Birdwatching '' November 21, 2017 1.0 / 4 3.86 0.6 2.53 1.6 6.39 8 `` Fork - Getta - Bout - It '' November 28, 2017 1.0 / 4 4.89 0.7 2.44 1.7 7.34 9 `` Fools Rush In '' December 5, 2017 1.0 / 4 4.50 0.7 2.45 1.7 6.95 10 `` Wreck the Halls '' December 12, 2017 1.0 / 4 4.08 N / A N / A N / A N / A 11 `` Funny Money '' January 2, 2018 1.1 / 4 4.55 N / A N / A N / A N / A 12 `` Diggin ' Up Dirt '' January 9, 2018 1.0 / 4 4.26 0.7 2.70 1.7 6.95 13 `` Better Living Through Chemistry '' January 16, 2018 1.2 / 4 5.03 N / A 2.47 N / A 7.50 14 `` Double Shot of Baileys '' January 23, 2018 1.2 / 4 4.55 0.6 2.67 1.8 7.22 15 `` An Inconvenient Ruth '' February 6, 2018 1.1 / 4 4.35 0.7 2.80 1.8 7.15 16 `` Ruthless '' February 27, 2018 1.0 / 4 4.13 0.6 2.68 1.6 6.81 17 `` The Odd Couple '' March 6, 2018 0.9 / 4 4.00 0.6 2.48 1.5 6.48 18 `` Frankie Comes to Town '' April 10, 2018 0.9 / 4 4.14 0.6 2.36 1.5 6.50 19 `` Leo Getz Hitched '' April 17, 2018 0.8 / 3 3.59 0.6 2.44 1.4 6.02 20 `` Jesse 's Girl '' April 24, 2018 0.9 / 4 4.28 0.6 2.10 1.5 6.38 21 `` Family Ties '' May 1, 2018 0.7 / 3 3.09 0.6 2.42 1.3 5.50 22 `` One Day More '' May 8, 2018 0.8 / 4 3.15 0.5 2.34 1.3 5.49 Home Media DVD & Blu - ray Title Release date Additional Region 1 / A Region 2 / B Region 4 / B The Complete First Season September 19, 2017 September 25, 2017 September 20, 2017 Features Set Details : 4 - disc DVD ( all regions ) 3 - disc DVD ( all regions ) 791 minutes 1.78 : 1 aspect ratio Audio : English : Dolby Digital 5.1 ( DVD ) English : DTS - HD Master Audio 5.1 ( Blu - ray ) German : Dolby Digital 5.1 ( Blu - ray ) French : Dolby Digital 2.0 ( Blu - ray ) Spanish : Dolby Digital 2.0 ( Blu - ray ) Subtitles : English SDH ( see additional subtitle options as they vary on different regions ) Special features : Extended Pilot ( Uncensored ) All - New Featurette : `` Reloading Lethal Weapon '' Deleted Scenes Gag Reel Rating : BBFC : 15 ACB : MA15+ The Complete Second Season September 18, 2018 October 1, 2018 TBA Features Set Details 1.78 : 1 aspect ratio Audio : TBA Subtitles : TBA Special features : TBA Ratings : TBA References ^ Jump up to : Andreeva, Nellie ( May 10, 2016 ). `` ' The Exorcist ', ' Lethal Weapon ', ' Making History ', ' Pitch ', ' The Mick ' & ' APB ' Get Fox Series Orders ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. ^ Jump up to : Ausiello, Michael ( May 13, 2018 ). `` Lethal Weapon : Seann William Scott Replaces Clayne Crawford, Clearing the Way for Season 3 Renewal at Fox ''. TVLine. Retrieved May 13, 2018. Jump up ^ Andreeva, by Nellie ( July 28, 2018 ). `` Lethal Weapon ' : Seann William Scott 's Character Details Revealed ; Maggie Lawson Cast As His Ex On Fox Series ''. Deadline Hollywood. ^ Jump up to : Porter, Rick ( September 22, 2016 ). `` Wednesday final ratings : ' Empire ' adjusts up, ' Designated Survivor ' adjusts down ''. TV by the Numbers. Retrieved September 22, 2016. ^ Jump up to : Porter, Rick ( September 29, 2016 ). `` Wednesday final ratings : ' Empire, ' ' Lethal Weapon, ' ' Criminal Minds, ' ' SVU ' & ' Blindspot ' all adjust up ''. TV by the Numbers. Retrieved September 29, 2016. ^ Jump up to : Porter, Rick ( October 6, 2016 ). `` ' Empire, ' ' Survivor, ' ' SVU, ' ' Chicago PD ' adjust up, ' Black - ish ' adjusts down : Wednesday final ratings ''. TV by the Numbers. Retrieved October 6, 2016. ^ Jump up to : Porter, Rick ( October 13, 2016 ). `` ' Empire ' and ' The Goldbergs ' adjust up : Wednesday final ratings ''. TV by the Numbers. Retrieved October 13, 2016. ^ Jump up to : Porter, Rick ( October 20, 2016 ). `` ' Blindspot ' and ' Frequency ' adjust down, full debate numbers : Wednesday final ratings ''. TV by the Numbers. Retrieved October 20, 2016. ^ Jump up to : Porter, Rick ( November 10, 2016 ). `` ' Black - ish ' adjusts down, others hold : Wednesday final ratings ''. TV by the Numbers. Retrieved November 10, 2016. ^ Jump up to : Porter, Rick ( November 17, 2016 ). `` ' Goldbergs ' and ' Speechless ' adjust up, ' Black - ish ' adjusts down : Wednesday final ratings ''. TV by the Numbers. Retrieved November 17, 2016. ^ Jump up to : Porter, Rick ( December 2, 2016 ). `` ' Empire ' adjusts up, ' Black - ish ' adjusts down : Wednesday final ratings ''. TV by the Numbers. Retrieved December 2, 2016. ^ Jump up to : Welch, Alex ( December 8, 2016 ). `` ' Modern Family ' adjusts up : Wednesday final ratings ''. TV by the Numbers. Retrieved December 8, 2016. ^ Jump up to : Porter, Rick ( January 6, 2017 ). `` ' Lethal Weapon, ' ' Modern Family ' and ' Criminal Minds ' adjust up : Wednesday final ratings ''. TV by the Numbers. Retrieved January 6, 2017. ^ Jump up to : Porter, Rick ( January 12, 2017 ). `` ' The Goldbergs ' and ' Speechless ' adjust up : Wednesday final ratings ''. TV by the Numbers. Retrieved January 12, 2017. ^ Jump up to : Porter, Rick ( January 20, 2017 ). `` ' Black - ish ' adjusts down slightly : Wednesday final ratings ''. TV by the Numbers. Retrieved January 20, 2017. ^ Jump up to : Porter, Rick ( January 26, 2017 ). `` ' SVU ' and ' Modern Family ' reruns adjust up : Wednesday final ratings ''. TV by the Numbers. Retrieved January 26, 2017. ^ Jump up to : Porter, Rick ( February 9, 2017 ). `` ' Goldbergs, ' ' Modern Family, ' ' Blindspot ' adjust up, ' Black - ish ' adjusts down : Wednesday final ratings ''. TV by the Numbers. Retrieved February 9, 2017. ^ Jump up to : Porter, Rick ( February 16, 2017 ). `` ' Speechless ' adjusts up, ' SVU ' and ' Blindspot ' adjust down : Wednesday final ratings ''. TV by the Numbers. Retrieved February 16, 2017. ^ Jump up to : Porter, Rick ( February 24, 2017 ). `` ' Lethal Weapon, ' ' The Goldbergs ' and ' Speechless ' adjust up : Wednesday final ratings ''. TV by the Numbers. Retrieved February 24, 2017. ^ Jump up to : Porter, Rick ( March 9, 2017 ). `` ' Star ' adjusts up : Wednesday final ratings ''. TV by the Numbers. Retrieved March 9, 2017. ^ Jump up to : Porter, Rick ( March 17, 2017 ). `` ' The 100 ' adjusts down : Wednesday final ratings ''. TV by the Numbers. Retrieved March 17, 2017. ^ Jump up to : Porter, Rick ( September 27, 2017 ). `` ' Bull, ' ' Voice, ' ' This Is Us ' adjust up, ' L&O True Crime ' and ' Brooklyn Nine - Nine ' down : Tuesday final ratings ''. TV by the Numbers. Retrieved September 27, 2017. ^ Jump up to : Porter, Rick ( October 4, 2017 ). `` ' Fresh Off the Boat, ' ' Voice ' adjust up, ' Brooklyn Nine - Nine, ' ' L&O True Crime ' adjust down : Tuesday final ratings ''. TV by the Numbers. Retrieved October 4, 2017. ^ Jump up to : Porter, Rick ( October 11, 2017 ). `` ' Voice, ' ' Flash, ' ' Lethal Weapon ' & ' The Mick ' adjust up, ' NCIS : New Orleans ' down : Tuesday final ratings ''. TV by the Numbers. Retrieved October 11, 2017. ^ Jump up to : Porter, Rick ( October 18, 2017 ). `` ' NCIS, ' ' Voice ' and ' This Is Us ' adjust up, ' Black - ish ' and ' L&O True Crime ' down : Tuesday final ratings ''. TV by the Numbers. Retrieved October 18, 2017. ^ Jump up to : Porter, Rick ( November 8, 2017 ). `` ' The Middle ' adjusts up, ' The Mayor ' adjusts down : Tuesday final ratings ''. TV by the Numbers. Retrieved November 8, 2017. ^ Jump up to : Porter, Rick ( November 15, 2017 ). `` ' Fresh Off the Boat, ' ' The Flash ' and ' Kevin ' adjust up, ' Bull ' and ' L&O True Crime ' adjust down : Tuesday final ratings ''. TV by the Numbers. Retrieved November 15, 2017. ^ Jump up to : Porter, Rick ( November 22, 2017 ). `` ' Dancing With the Stars, ' ' This Is Us, ' all others hold : Tuesday final ratings ''. TV by the Numbers. Retrieved November 22, 2017. ^ Jump up to : Porter, Rick ( November 30, 2017 ). `` ' The Flash, ' ' This Is Us ' and ' Rudolph ' adjust up : Tuesday final ratings ''. TV by the Numbers. Retrieved November 30, 2017. ^ Jump up to : Porter, Rick ( December 6, 2017 ). `` ' Chicago Med ' adjusts up : Tuesday final ratings ''. TV by the Numbers. Retrieved December 6, 2017. ^ Jump up to : Porter, Rick ( December 13, 2017 ). `` ' The Voice, ' ' Brooklyn Nine - Nine, ' all others unchanged : Tuesday final ratings ''. TV by the Numbers. Retrieved December 13, 2017. ^ Jump up to : Porter, Rick ( January 4, 2018 ). `` ' Bull ' adjusts up : Tuesday final ratings ''. TV by the Numbers. Retrieved January 4, 2018. ^ Jump up to : Welch, Alex ( January 10, 2018 ). `` ' Kevin ( Probably ) Saves the World ' adjusts down : Tuesday final ratings ''. TV by the Numbers. Retrieved January 10, 2018. ^ Jump up to : Porter, Rick ( January 18, 2018 ). `` Originals all hold, ' Modern Family ' rerun adjusts down : Tuesday final ratings ''. TV by the Numbers. Retrieved January 18, 2018. ^ Jump up to : Welch, Alex ( January 24, 2018 ). `` ' LA to Vegas ' and ' Bull ' adjust down : Tuesday final ratings ''. TV by the Numbers. Retrieved January 24, 2018. ^ Jump up to : Porter, Rick ( February 7, 2018 ). `` ' NCIS ' and ' Bull ' adjust up : Tuesday final ratings ''. TV by the Numbers. Retrieved February 7, 2018. ^ Jump up to : Porter, Rick ( February 28, 2018 ). `` ' The Voice ' and ' Kevin ( Probably ) Saves the World ' adjust up : Tuesday final ratings ''. TV by the Numbers. Retrieved February 28, 2018. ^ Jump up to : Porter, Rick ( March 7, 2018 ). `` ' This Is Us ' adjusts up, ' Lethal Weapon ' adjusts down : Tuesday final ratings ''. TV by the Numbers. Retrieved March 7, 2018. ^ Jump up to : Porter, Rick ( April 11, 2018 ). `` ' Roseanne, ' ' The Middle, ' ' Lethal Weapon ' adjust up, ' Black - ish ' down : Tuesday final ratings ''. TV by the Numbers. Retrieved April 11, 2018. ^ Jump up to : Porter, Rick ( April 18, 2018 ). `` ' NCIS, ' ' Alex, Inc., ' ' Lethal Weapon, ' ' The Flash ' adjust up, ' For the People ' down : Tuesday final ratings ''. TV by the Numbers. Retrieved April 18, 2018. ^ Jump up to : Porter, Rick ( April 25, 2018 ). `` ' The Voice, ' ' Chicago Med, ' ' LA to Vegas ' adjust up, ' Rise ' and ' Deception ' down : Tuesday final ratings ''. TV by the Numbers. Retrieved April 25, 2018. ^ Jump up to : Porter, Rick ( May 2, 2018 ). `` ' Roseanne ' and ' Chicago Med ' adjust up, ' The 100 ' adjusts down : Tuesday final ratings ''. TV by the Numbers. Retrieved May 2, 2018. ^ Jump up to : Porter, Rick ( May 9, 2018 ). `` ' The Voice ' and ' Chicago Med ' adjust up, ' Bull ' adjusts down : Tuesday final ratings ''. TV by the Numbers. Retrieved May 9, 2018. Jump up ^ `` ' ITV locks up Lethal Weapon acquisition ''. July 4, 2016. Retrieved July 4, 2016. Jump up ^ `` Lethal Weapon Season 1 ''. 9Now. Nine Entertainment Co. Retrieved 5 April 2017. Jump up ^ `` Airdate : Lethal Weapon ''. TV Tonight. TV Tonight. Retrieved 5 April 2017. Jump up ^ `` Lethal Weapon on ABS - CBN ''. ABS - CBN Entertainment. YouTube. May 19, 2017. Retrieved May 23, 2017. Jump up ^ `` Zee Cafe to premier 5 new shows ''. exchange4media. Retrieved 2 December 2017. Jump up ^ Andreeva, Nellie ( October 12, 2016 ). `` ' Lethal Weapon ' Gets Order For 5 More Episodes In Season 1 From Fox ''. Deadline Hollywood. Retrieved October 12, 2016. Jump up ^ Andreeva, Nellie ( February 22, 2017 ). `` ' Lethal Weapon ' Renewed For Season 2 By Fox ''. Deadline Hollywood. Retrieved February 22, 2017. Jump up ^ Holloway, Daniel ( June 22, 2017 ). `` Fox Sets Fall Premiere Dates, Including ' Empire, ' ' The Gifted, ' ' The Orville ' ''. Variety. Retrieved June 22, 2017. Jump up ^ Stanhope, Kate ( February 22, 2017 ). `` Fox 's ' Lethal Weapon ' Renewed for Season 2 ''. Hollywood Reporter. Retrieved February 28, 2018. ^ Jump up to : Andreeva, Nellie ( May 14, 2018 ). `` ' Lethal Weapon ' Season 3 Renewal After Casting Shakeup Comes With Caveat -- A Shorter Order ''. Deadline Hollywood. Retrieved May 14, 2018. Jump up ^ Andreeva, Nellie ( February 12, 2016 ). `` ' Lethal Weapon ' Pilot Ordered By Fox ; Damon Wayans Starring, McG Directing ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. Jump up ^ Andreeva, Nellie ( February 19, 2016 ). `` ' Lethal Weapon ' Pilot : Golden Brooks Cast ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. Jump up ^ Andreeva, Nellie ( March 3, 2016 ). `` ' Lethal Weapon ' Pilot : Jordana Brewster To Co-Star ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. Jump up ^ Andreeva, Nellie ( March 7, 2016 ). `` ' Lethal Weapon ' : Kevin Rahm To Co-Star In Fox Pilot ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. Jump up ^ Andreeva, Nellie ( March 10, 2016 ). `` ' Lethal Weapon ' : Clayne Crawford To Star As Mel Gibson 's Martin Riggs In Fox Pilot ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. Jump up ^ Petski, Denise ( March 15, 2016 ). `` ' Lethal Weapon ' Casts Chandler Kinney ; Sarayu Blue Joins ' No Tomorrow ' ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. Jump up ^ Andreeva, Nellie ( March 17, 2016 ). `` ' Lethal Weapon ' Fox Pilot : Keesha Sharp Set For Co-Starring Role In Recasting ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. ^ Jump up to : Obenson, Tambay A. ( March 17, 2016 ). `` Keesha Sharp Replaces Golden Brooks in ' Lethal Weapon ' Pilot + Johnathan Fernandez Joins Cast ''. Indiewire. United States : Penske Media Corporation. Retrieved May 11, 2016. Jump up ^ Petski, Denise ( March 17, 2016 ). `` ' Lethal Weapon ' Pilot Casts Johnathan Fernandez ; Tommy Savas In ' The Fluffy Shop ' ''. Deadline Hollywood. United States : Penske Media Corporation. Retrieved May 11, 2016. Jump up ^ Goldberg, Lesley ( May 8, 2017 ). `` ' Lethal Weapon ' Star Clayne Crawford Out as Producers Scramble to Recast ''. The Hollywood Reporter. Jump up ^ Andreeva, Nellie ( 23 April 2018 ). `` ' Lethal Weapon 's Fox Renewal On The Line Over Co-Lead Clayne Crawford 's Behavior ''. Jump up ^ http://people.com/tv/damon-wayans-claims-clayne-crawford-caused-his-onset-injury/ Jump up ^ `` Lethal Weapon : Season 1 ( 2016 -- 2017 ) ''. Rotten Tomatoes. Retrieved May 8, 2018. Jump up ^ `` Lethal Weapon ( 2016 ) : Season 1 ''. Metacritic. Retrieved September 14, 2017. Jump up ^ de Moraes, Lisa ( May 26, 2017 ). `` Final 2016 - 17 TV Rankings : ' Sunday Night Football ' Winning Streak Continues ''. Deadline Hollywood. Archived from the original on May 27, 2017. Retrieved May 26, 2017. Jump up ^ `` 2017 - 18 TV Series Ratings Rankings : NFL Football, ' Big Bang ' Top Charts ''. Deadline Hollywood. May 22, 2018. Retrieved May 22, 2018. Jump up ^ Porter, Rick ( October 4, 2016 ). `` ' Designated Survivor ' is your premiere week DVR champion : Broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved October 4, 2016. Jump up ^ Porter, Rick ( October 11, 2016 ). `` ' Designated Survivor ' posts more big DVR gains : Broadcast Live + 7 ratings for Sept. 26 - Oct. 2 ''. TV by the Numbers. Retrieved October 13, 2016. Jump up ^ Porter, Rick ( October 19, 2016 ). `` Rich get richer as ' Empire, ' ' Big Bang, ' ' Designated Survivor ' lead broadcast Live + 7 ratings for Oct. 3 - 9 ''. TV by the Numbers. Retrieved October 19, 2016. Jump up ^ Porter, Rick ( October 27, 2016 ). `` ' This Is Us, ' ' Big Bang, ' ' Designated Survivor ' lead broadcast Live + 7 ratings for Oct. 10 - 16 ''. TV by the Numbers. Retrieved October 27, 2016. Jump up ^ Porter, Rick ( November 4, 2016 ). `` ' This Is Us ' and ' Agents of SHIELD ' score in broadcast Live + 7 ratings for Oct. 17 - 23 ''. TV by the Numbers. Retrieved November 4, 2016. Jump up ^ Porter, Rick ( November 23, 2016 ). `` ' Designated Survivor ' makes more big gains in week 8 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved November 23, 2016. Jump up ^ Porter, Rick ( December 1, 2016 ). `` ' This Is Us, ' ' Big Bang, ' ' Designated Survivor ' are the Big Three in week 9 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved December 1, 2016. Jump up ^ Porter, Rick ( December 21, 2016 ). `` 6 shows double in week 11 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved December 21, 2016. Jump up ^ Porter, Rick ( December 22, 2016 ). `` ' This Is Us ' reaches season highs week 12 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved December 22, 2016. Jump up ^ Porter, Rick ( January 20, 2017 ). `` ' Big Bang Theory, ' ' The Blacklist ' top the week 16 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved January 20, 2017. Jump up ^ Porter, Rick ( January 26, 2017 ). `` ' This Is Us ' rides high in week 17 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved January 26, 2017. Jump up ^ Porter, Rick ( February 1, 2017 ). `` ' Agents of SHIELD ' and ' This Is Us ' make big gains in week 18 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved February 1, 2017. Jump up ^ Porter, Rick ( February 11, 2017 ). `` ' This Is Us ' and TGIT rise above the rest in week 19 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved February 11, 2017. Jump up ^ Porter, Rick ( February 23, 2017 ). `` ' This Is Us ' and ' Timeless ' lead the week 21 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved February 23, 2017. Jump up ^ Porter, Rick ( March 2, 2017 ). `` ' This Is Us ' and ' Agents of SHIELD ' on top again : Week 22 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved March 2, 2017. Jump up ^ Porter, Rick ( March 9, 2017 ). `` ' This Is Us ' makes biggest gains again : Week 23 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved March 9, 2017. Jump up ^ Porter, Rick ( March 24, 2017 ). `` ' Sleepy Hollow ' & 5 more shows double, ' This Is Us ' has biggest total gain : Week 25 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved March 24, 2017. Jump up ^ Porter, Rick ( March 30, 2017 ). `` ' This Is Us ' finale, ' Designated Survivor ' top week 26 's broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved March 30, 2017. Jump up ^ Porter, Rick ( October 13, 2017 ). `` ' This Is Us ' and ' The Good Doctor ' score big in premiere week broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved October 13, 2017. Jump up ^ Porter, Rick ( October 18, 2017 ). `` ' The Orville, ' ' Once Upon a Time, ' 5 more shows double in week 2 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved October 18, 2017. Jump up ^ Porter, Rick ( October 25, 2017 ). `` ' The Good Doctor ' is the most - watched show on TV in week 3 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved October 25, 2017. Jump up ^ Porter, Rick ( November 2, 2017 ). `` ' Chicago PD, ' 10 more shows double in week 4 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved November 2, 2017. Jump up ^ Porter, Rick ( November 27, 2017 ). `` ' This Is Us ' rides high in week 7 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved November 27, 2017. Jump up ^ Porter, Rick ( December 5, 2017 ). `` ' Jane the Virgin, ' 10 other shows double in week 8 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved December 5, 2017. Jump up ^ Porter, Rick ( December 7, 2017 ). `` ' Chicago Med ' premiere makes solid gains in week 9 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved December 7, 2017. Jump up ^ Porter, Rick ( December 15, 2017 ). `` CW crossovers get another bump in week 10 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved December 15, 2017. Jump up ^ Porter, Rick ( December 21, 2017 ). `` ' Agents of SHIELD ' gets a good bump in week 11 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved December 21, 2017. Jump up ^ Porter, Rick ( January 26, 2018 ). `` ' The Brave ' goes from low to... less low : Week 16 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved January 26, 2018. Jump up ^ Porter, Rick ( February 1, 2018 ). `` ' This Is Us, ' ' The Good Doctor ' both double in week 17 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved February 1, 2018. Jump up ^ Porter, Rick ( February 8, 2018 ). `` ' This Is Us ' sets NBC records in week 18 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved February 8, 2018. Jump up ^ Porter, Rick ( February 22, 2018 ). `` ' The Good Doctor ' and ' This Is Us ' on top again : Week 20 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved February 22, 2018. Jump up ^ Pucci, Douglas ( March 15, 2018 ). `` Live + 7 Weekly Ratings : ' Designated Survivor ' Returns with Biggest Percentage Lifts ; ' The Good Doctor ', ' This is Us ' Deliver Biggest Raw Gains ''. Programming Insider. Retrieved March 15, 2018. Jump up ^ Pucci, Douglas ( March 20, 2018 ). `` Live + 7 Weekly Ratings : ' Designated Survivor ', ' Jane the Virgin ', ' The Flash ', ' iZombie ' Among Largest Percentage Gainers ''. Programming Insider. Retrieved March 20, 2018. Jump up ^ Porter, Rick ( April 26, 2018 ). `` ' New Girl ' premiere doubles in week 29 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved April 26, 2018. Jump up ^ Porter, Rick ( May 7, 2018 ). `` ' Scandal ' and ' Criminal Minds ' get biggest finale bumps in week 30 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved May 7, 2018. Jump up ^ Porter, Rick ( May 10, 2018 ). `` ' Agents of SHIELD, ' 13 more shows double in week 31 broadcast Live + 7 ratings ''. TV by the Numbers. Retrieved May 10, 2018. Jump up ^ Pucci, Douglas ( May 15, 2018 ). `` Live + 7 Weekly Ratings : ' The Originals ' on CW More Than Doubles its Live Plus Same Day Figures in Delayed Viewing ''. Programming Insider. Retrieved May 15, 2018. Jump up ^ Pucci, Douglas ( May 22, 2018 ). `` Live + 7 Weekly Ratings : ' Timeless ' Season Finale on NBC Ranks in Broadcast Top Ten for Total Viewers Percentage Gains ''. Programming Insider. Retrieved May 22, 2018. Jump up ^ Region 1 DVD / Region A Blu - ray releases : `` Lethal Weapon : Season 1 DVD ''. Blu-ray.com. Retrieved 18 July 2018. `` Lethal Weapon : The Complete First Season Blu - ray ''. Blu-ray.com. Retrieved 18 July 2018. Jump up ^ Region 2 DVD / Region B ( UK ) Blu - ray releases : `` Lethal Weapon Season 1 ( DVD / S ) ( 2017 ) ''. Amazon.co.uk. Retrieved 18 July 2018. `` Lethal Weapon - Season 1 ( Blu - ray ) ( 2017 ) ''. Amazon.co.uk. Retrieved 18 July 2018. `` Lethal Weapon : Season 2 ( DVD ) ( 2018 ) ''. Amazon.co.uk. Retrieved 18 July 2018. `` Lethal Weapon : Season 2 ( Blu - ray ) ( 2018 ) ''. Amazon.co.uk. Retrieved 18 July 2018. Jump up ^ Region 4 DVD / Region B ( AU ) Blu - ray releases : `` Lethal Weapon - Season 1 4 DVD ''. JB Hi - Fi. Retrieved 18 July 2018. `` Lethal Weapon - Season 1 3 Blu - ray ''. JB Hi - Fi. Retrieved 18 July 2018. External links Lethal Weapon on IMDb Lethal Weapon Films Lethal Weapon ( Soundtrack ) ( 1987 ) Lethal Weapon 2 ( 1989 ) Lethal Weapon 3 ( 1992 ) Lethal Weapon 4 ( 1998 ) Television Lethal Weapon ( Episodes ) Characters Martin Riggs Roger Murtaugh Songs `` Cheer Down '' `` It 's Probably Me '' `` Runaway Train '' Games Video game Pinball Fox programming ( current and upcoming ) Primetime 9 - 1 - 1 ( since 2018 ) Bob 's Burgers ( since 2011 ) Beat Shazam ( since 2017 ) Cosmos : A Spacetime Odyssey ( since 2014 ) Empire ( since 2015 ) Family Guy ( 1999 -- 2002 ; since 2005 ) The Four : Battle for Stardom ( since 2018 ) The Gifted ( since 2017 ) Gordon Ramsay 's 24 Hours to Hell and Back ( since 2018 ) Gotham ( since 2014 ) Hell 's Kitchen ( since 2005 ) Lethal Weapon ( since 2016 ) Love Connection ( since 2017 ) MasterChef ( since 2010 ) MasterChef Junior ( since 2013 ) Miss Universe ( since 2015 ) Miss USA ( since 2016 ) The Orville ( since 2017 ) Prison Break ( 2005 -- 2009 ; since 2017 ) The Resident ( since 2018 ) Showtime at the Apollo ( since 2018 ) The Simpsons ( since 1989 ) So You Think You Can Dance ( since 2005 ) Star ( since 2016 ) News Fox News Sunday ( since 1996 ) Sports Fox College Football ( since 1999 ) MLB on Fox ( since 1996 ) Fox NASCAR ( since 2001 ) Fox NFL / Fox NFL Sunday ( since 1994 ) The OT ( since 2005 ) Fox USGA ( since 2014 ) Fox UFC ( since 2011 ) Upcoming Last Man Standing ( 2018 ) Rel ( 2018 ) The Cool Kids ( 2018 ) Thursday Night Football ( 2018 ) The Masked Singer ( 2019 ) The Passage ( 2019 ) Proven Innocent ( 2019 ) Mental Samurai ( TBA ) Spin the Wheel ( TBA ) See also 4Kids TV Animation Domination Animation Domination High - Def Fox Kids Speed on Fox Sunday Funday Weekend Marketplace Retrieved from `` https://en.wikipedia.org/w/index.php?title=Lethal_Weapon_(TV_series)&oldid=856516738 '' Categories : 2016 American television series debuts 2010s American comedy - drama television series 2010s American crime television series American action television series American crime drama television series English - language television programs Fictional portrayals of the Los Angeles Police Department Fox network shows Police procedural television series Television programs based on films Television series by Warner Bros. Television Television shows set in Los Angeles Lethal Weapon Hidden categories : Pages using infobox television with editor parameter Talk Contents About Wikipedia Dansk Deutsch Español فارسی Français 한국어 Bahasa Indonesia Italiano Magyar 日本 語 Norsk Polski Português Русский Slovenčina Suomi Svenska ไทย Türkçe Українська Tiếng Việt 中文 14 more Edit links This page was last edited on 25 August 2018, at 19 : 53 ( UTC ). Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: how many episodes in lethal weapon series 3
Answer: 13