List of Blue Bloods characters - wikipedia List of Blue Bloods characters This article relies too much on references to primary sources. Please improve this by adding secondary or tertiary sources. ( December 2015 ) This is an overview of the regular, recurring, and other characters of the TV series Blue Bloods. Contents 1 Reagan family 1.1 Frank Reagan 1.1. 1 Biography and family 1.1. 2 Service 1.1. 3 As police commissioner 1.1. 3.1 Senior staff 1.1. 4 List of assignments 1.1. 5 Partners 1.2 Danny Reagan 1.2. 1 Biography 1.2. 2 Partners 1.3 Erin Reagan 1.3. 1 Biography 1.4 Jamie Reagan 1.4. 1 Biography 1.4. 2 Partners 1.5 Henry Reagan 1.5. 1 Biography 1.5. 2 Notes 1.6 Linda Reagan 1.6. 1 Biography 1.7 Nicky Reagan - Boyle 1.7. 1 Biography 1.7. 2 Notes 1.8 Other Reagans 2 Recurring characters 2.1 Recurring 2.2 Associates of Frank 2.2. 1 Frank Russo / Robert Levitt 2.2. 2 Carter Poole 2.2. 3 Margaret Dutton 2.2. 4 Martin Mendez 2.2. 5 Abigail Baker 2.2. 6 Garrett Moore 2.2. 7 Dino Arbogast 2.2. 8 Kelly Peterson 2.2. 9 Sidney Gormley 2.2. 10 Senior NYPD officers 2.3 Associates of Danny 2.3. 1 Jackie Curatola 2.3. 2 Kate Lansing 2.3. 3 Maria Baez 2.3. 4 Dee Ann Carver 2.4 Associates of Erin 2.4. 1 Jack Boyle 2.4. 2 Charles Rosselini 2.4. 3 Amanda Harris 2.4. 4 Robert McCoy 2.4. 5 Alex McBride 2.4. 6 Anthony Abetemarco 2.5 Associates of Jamie 2.5. 1 Anthony Renzulli 2.5. 2 Vinny Cruz 2.5. 3 Eddie Janko 2.6 Others 2.6. 1 Darnell Potter 3 References Reagan family ( Edit ) Frank Reagan ( Edit ) Frank Reagan Blue Bloods character Frank Reagan is played by actor Tom Selleck. First appearance `` Pilot '' September 24, 2010 Created by Robin Green Mitchell Burgess Portrayed by Tom Selleck Information Full name Francis Xavier Reagan Gender Male Occupation Police officer / police commissioner Title New York City Police Commissioner Family Henry Reagan ( father ) Betty Reagan ( mother ) † Peter Christopher Reagan ( older brother ) † Spouse ( s ) Mary Margaret Reagan ( wife ) † Children Danny Reagan Erin Reagan Joe Reagan † Jamie Reagan Relatives Charles Reagan ( grandfather ) † Teddy Reagan ( great - uncle ) Linda Reagan ( daughter - in - law ) † Eddie Janko ( future daughter - in - law ) Jack Boyle ( ex-son - in - law ) Nicky Reagan - Boyle ( granddaughter ) Jack Reagan ( grandson ) Sean Reagan ( grandson ) Religion Catholic Nationality American Police career Department New York City Police Department Years of service 1974 -- Present Rank Commissioner Awards US Flag Breast Bar World Trade Center Breast Bar NYPD Medal of Honor NYPD Combat Cross ( 2 ) NYPD Meritorious Police Duty NYPD Excellent Police Duty NYPD Unit Citation NYPD 1986 Liberty Breast Bar NYPD Firearms Proficiency Bar NYPD Award of Merit Commissioner Francis Xavier Reagan is a fictional character and the protagonist of the CBS TV series Blue Bloods. He is portrayed by former Magnum P.I. star Tom Selleck. Biography and family ( Edit ) Frank is the younger son of Henry ( Len Cariou ) and Betty Reagan, born in Bay Ridge, Brooklyn, New York in the early 1950s. His older brother, Peter Christopher Reagan, died of leukemia at the age of 18 months over a year before Frank was born. Frank married Mary Margaret Reagan in the early 1970s, and they have four children together : Danny, Erin, Joe, and Jamie. Each of Frank 's sons followed him into the NYPD : Danny ( Donnie Wahlberg ) is a Detective 1st Grade and lead investigator with the 54th Precinct 's Detective Squad ; Joe was a Detective with the Warrants Squad who was murdered on the orders of his partner Sonny Malevsky ( Michael T. Weiss ), the leader of a corrupt gang of police officers called the Blue Templar ; and Jamie ( Will Estes ) is a patrol officer assigned to the 12th Precinct with a law degree from Harvard University. Frank 's only daughter, Erin ( Bridget Moynahan ), is also in law enforcement as a Manhattan Assistant District Attorney. Erin was promoted to Deputy Bureau Chief of the NYCDA 's Trial Bureau in 2013. In addition to his children, Frank is also a loving grandfather to Erin 's daughter, Nicky Reagan - Boyle ( Sami Gayle ), and Danny 's two children, Jack ( Tony Terraciano ) and Sean Reagan ( Andrew Terraciano ). In one episode, it is mentioned that Frank 's wife 's grandfather was one of the builders on the Brooklyn Bridge in the 1870s and ' 80s. Frank 's dad 's father, Charles Reagan, was an Irish immigrant who served in World War I before becoming a police officer. Charles was the one who taught him how to fish. In `` Whistle Blower '' ( season 2, episode 10 ), Frank mentions his great - uncle Teddy Reagan, a member of the NYPD Mounted Unit, who spent a cold night in a boxcar with his horse, Dolly, and woke up in Pittsburgh. Growing up, Frank became friends with Angelo Gallo ( Chazz Palminteri ), who grew up to be one of the top mafia lawyers. After Gallo was shot on the orders of a former client, Frank has him publicly arrested for hindering prosecution, to protect him from being considered a rat. Another close friend of his is Monsignor Walter Donahue, a member of the city archdiocese. However, it is also mentioned that Frank does not have many friends in the New York City Council, especially after Danny 's arrest of city Councilman Tony Mancini ( Richard Burgi ), a former NYPD detective, for domestic abuse. Service ( Edit ) After serving in the United States Marine Corps during the Vietnam War ( during which time he held the rank of Lieutenant and was awarded the Navy & Marine Corps Achievement Medal ), Frank became the third generation of Reagans to become a police officer. He began his career as a patrol officer stationed at the 27th Precinct. After three years on patrol, he was promoted to Detective 3rd Grade. Since then, he has served in various positions across the city, including Chief of the Brooklyn South Division and the Chief of Department of the NYPD, culminating in being appointed Police Commissioner. In the 1970s, Frank led the attempt to apprehend Whitey Brennan, the head of the Westies, at his grandson 's baptism. Due to the chaos, a shootout ensued in which two police officers were wounded and four people from the Westies were killed, including Whitey 's wife and grandson. In the early 1980s, Frank served in the Canine Unit as a dog handler. However, he transferred out of the unit after Greta, his partner, was shot and killed by a burglar Frank sent her in after. From 1995 to 1999, Frank was the Commanding Officer of the Special Investigations Unit, a special anti-narcotics task force. On September 11, 2001, Frank was working in the North Tower when the South Tower collapsed. He spent days at Ground Zero, and took refuge at St. Paul 's Chapel, where he and other officers slept in the pews. As a `` Member Of the Service '' ( MOS ) prior to 1994, Frank continues to carry a revolver ( a Colt Official Police `` Fitz Special '' that originally belonged to his father and grandfather ) as his duty weapon. He also owns a Colt Government M1911. At one point, he uses it on a serial rapist who was about to rape and kill Erin. As police Commissioner ( Edit ) List of Blue Bloods characters New York City Police Commissioner Incumbent Assumed office September 24, 2010 Appointed by Frank Russo Carter Poole Preceded by Commissioner Connors Frank was appointed the Police Commissioner by Mayor Frank Russo ( Bruce Altman ). In 2011, after the election of Carter Poole ( David Ramsey ), Frank offers to tender his resignation, but Poole decided to keep Frank on as PC. In 2015, after Mayor Poole 's successful reelection, Frank struggles with whether he even wants to stay on for another four years as PC, assuming the Mayor even asks him to. He ultimately decides to stay for `` as long as the Mayor 's head is in his ass '' ( which was remarked as indefinitely ). The Mayor officially asked Frank to re-up in February 2016 and he agrees. Frank has an indifferent attitude towards politics, often taking on the mayor and numerous reporters who misinterpret his actions. He tries hard not to judge people, and tends to purse his lips together when hearing bad news or the horrific details of an ongoing case. He also refuses to play favorites ; in season 4, he mentions that he is afraid to recommend Jamie, now with four years on the force, for promotion to Detective because it would look like nepotism. In 2011, Frank was shot by Kevin Brennan ( Jack Gwaltney ), the son of the former head of the Westies who Frank arrested back in the ' 70s. In 2013, Frank is the target of an assassination attempt by Hector Santiago ( Omar Maskati ), a mentally - challenged teenager of the Bitterman housing projects who is tricked by a member of the Los Lordes gang who declared war on the NYPD. The bullets miss Frank, but hit Mayor Poole, leaving him paralyzed and confined to a wheelchair. One of Frank 's predecessors, `` Crooked '' Commissioner Connors, served time in a federal prison after his term as PC was completed and left him with more than one mess to clean up, including Officer Thomas Sculley ( Warren Kole ), one of four patrol officers who, a few months after 9 / 11, accidentally shot an unarmed Muslim teenager, and was acquitted of all charges and allowed by then - Commissioner Connors to keep his job. In 2016, Officer Sculley, who had kept his head down for the last 14 years and made great strides to atone for his horrible rookie mistake, passed the Sergeant 's exam with flying colors. Frank was reluctant to promote him, lest tensions between the citizens and the police grow even worse and ultimately offered Officer Sculley a choice : transfer to another city ( Long Island, Albuquerque, New Mexico, Boulder, Colorado, or San Diego were among the departments Frank talked to ) or take his promotion to Sergeant and ride a desk at the NYPD Erie Basin Auto Pound in Brooklyn for the rest of his career. In the first season, Frank is well regarded and respected by his officers and his city, to the point where the Mayor felt threatened by his popularity ; however, by season 6, public opinion regarding the police -- and him personally -- has changed so drastically that he gets booed off - stage while speaking at Columbia University. However, in season 7, new mayor Margaret Dutton affirms that his polls are better than any of the NY Mayors Frank was nearly served with a vote of no confidence by the NYPD rank and file in 2012 when he publicly apologized for the accidental shooting of a black man by a rookie patrol officer ( Corbin Bleu ) instead of waiting for the official report. Senior staff ( Edit ) The following officers are among Frank 's senior staff who assist him in his duties as the New York City Police Commissioner. First Deputy Commissioner -- Vincenzo ( John Bedford Lloyd ) Deputy Commissioner, Public Information / de facto Chief of Staff -- Garrett Moore ( Gregory Jbara ) Chief of Department -- Ed Hines ( John Rue ) ( Ret. 2013 ) Chief of Department -- Dino Arbogast ( John Ventimiglia ) ( terminated, 2014 ) Special Assistant to the Commissioner -- Lieutenant Sidney Gormley ( de facto Chief of Department ) ( Robert Clohessy ) Chief of Organized Crime Control Bureau -- Bureau Chief Dino Arbogast ( John Ventimiglia ) ( promoted to Chief of Department in 2013 ) Chief of Intelligence -- Bureau Chief Bryce Helfond ( Victor Slezak ) Chief of Gang Division -- Deputy Chief Donald Kent ( Dennis Haysbert ) ( promoted to Assistant Chief and then KIA, 2015 ) Primary Aide -- Detective 1st Grade Abigail Baker, PC 's ( Detective ) Squad ( Abigail Hawk ) List of assignments ( Edit ) The following are Frank 's known police assignments. Patrol Officer, NYPD 27th Precinct Patrol Officer, NYPD 25th Precinct Detective, NYPD 21st Precinct Senior Detective, NYPD Homicide Dog handler, NYPD Canine Unit Commanding Officer, NYPD Special Investigations Unit Deputy Chief, NYPD Patrol Borough Brooklyn South Chief of Department, NYPD ( Wears the uniform and shield to Academy graduation. ) New York City Police Commissioner Partners ( Edit ) Over his career, Frank has had numerous partners. Jimmy Burke ( Gary Basaraba ) -- Frank 's partner while stationed at the 27th Precinct who took a bullet for him. He was eventually promoted to Inspector and placed in command of the 15th Precinct. While up for a promotion to Deputy Chief as the Deputy Commander of Patrol Borough Manhattan South, it was revealed that he had been cooking the books for his precinct 's CompStats. Frank allowed him to retire rather than face demotion to Captain and reassignment to the 128th Precinct in Staten Island. Lenny Ross ( Treat Williams ) -- Frank 's partner while stationed at the 25th Precinct ; by 2016, Lenny had retired and wrote a book about the bad old days entitled `` Back in the Day '' detailing their exploits. John McKenna -- An NYPD officer who was with Frank during 9 / 11 who later got sick and died from illness he was exposed to during the attacks. Greta -- When assigned to the Canine Unit as a dog handler, Frank 's partner was Greta. He transferred out of the unit after Greta was shot and killed by a burglar Frank sent her in after. Danny Reagan ( Edit ) Danny Reagan Blue Bloods character Danny Reagan ( Donnie Wahlberg ) First appearance `` Pilot '' September 24, 2010 Created by Robin Green Mitchell Burgess Portrayed by Donnie Wahlberg Information Full name Daniel Fitzgerald Reagan Gender Male Occupation Police officer Family Frank Reagan ( father ) Mary Margaret Reagan ( mother ) † Erin Reagan ( younger sister ) Joseph Conor `` Joe '' Reagan ( younger brother ) † Jamison `` Jamie '' Reagan ( younger brother ) Spouse ( s ) Linda Reagan ( wife ) † Significant other ( s ) Marianne Romano ( ex-girlfriend ) Children Jack Reagan Sean Reagan Relatives Henry Reagan ( grandfather ) Betty Reagan ( grandmother ) † Peter Christopher Reagan ( uncle ) † Charles Reagan ( great - grandfather ) † Eddie Janko ( future sister - in - law ) Jack Boyle ( ex-brother - in - law ) Wendy Lightner ( sister - in - law ) Jimmy ( brother - in - law ) Nicky Reagan - Boyle ( niece ) Sofie Lightner ( niece ) Religion Catholic Nationality American Police career Department New York City Police Department Years of service 1990s -- Present Rank Detective 1st Grade Awards American Flag Breast Bar World Trade Center Breast Bar NYPD Medal of Honor NYPD Combat Cross NYPD Medal for Valor NYPD Honorable Mention NYPD Meritorious Police Duty Marine Corps Service Award Detective First Grade Daniel Fitzgerald Reagan is the eldest son of Commissioner Frank Reagan. He is portrayed by Donnie Wahlberg. Biography ( Edit ) The oldest son of the current New York City Police Commissioner Frank Reagan and his wife Mary, Danny grew up in Bay Ridge, Brooklyn with a younger sister, Erin, and two younger brothers, Joe and Jamie. He was happily married to Linda since 1996, with whom he has two sons, Jack ( b. 2000 ) and Sean ( b. 2004 ), until Linda 's death between seasons 7 and 8. They lived on Staten Island until their home was destroyed in a fire in the season 7 finale, which was set by a drug cartel in retaliation to a recent bust Danny made. During high school, Danny dated Marianne Romano ( Charisma Carpenter ), who was described by his partner Baez as `` the queen bee, super good looking, a little crazy, and dynamite in the sack '' to which he agreed. As a young man, Danny worked construction. For a class project of Nicky 's, Danny mentioned that when he was three years old, he wanted to be a firefighter for Halloween, but his grandfather Henry swore that as long as he was alive, no Reagan would ever be a member of the FDNY, got him into a police uniform, and he `` never took it off '' until he made Detective. On the job for 15 years ( as of season 1 ), Danny took a leave of absence from the New York City Police Department to serve two tours in the Iraq War as a Marine. Danny saw combat in Fallujah, and was the only member of his platoon to come home alive ( resulting in some post-traumatic stress ). During his time in the Marines, Danny was decorated for heroism. He is old - school ; his hotheadedness and harsh methods of detective work sometimes get him in trouble, which his father worries about. When asked if his son `` crosses the line '' and violates procedure from time to time, Frank answered, `` I think he walks on the line ''. Danny is hard on other policemen and detectives when he feels they are unprofessional or not doing their duty to its utmost. He is currently assigned to the Detective Squad of the 54th Precinct, and partnered with Detective Maria Baez. In `` Most Wanted '', it is mentioned that he leads the Manhattan South Detective Borough in both collars and complaints. In `` Love Stories '', he and Baez are awarded the NYPD Medal for Valor for their actions in `` Partners ''. As a detective with the NYPD, Danny carries a Kahr K9 in 9 × 19mm as his duty weapon, and drives a Dodge Charger on duty, which replaced his previous Chevrolet Impala 9C1. He also owns a Glock 19 in 9 × 19mm, and previously used a Smith & Wesson 5946 in 9 × 19mm. Danny drove a Jeep XJ Cherokee as his personal / family vehicle from Season 1 to Season 5, whilst Linda drove a rather troublesome 2001 Kia Sedona / Carnival ; this vehicle was replaced when Henry lost his driver 's license and gave Linda his car. In Season 6, Danny 's Cherokee was replaced by a fourth - generation Ford Explorer. Partners ( Edit ) Over his career, Danny has had numerous partners. Detective Darryl Reid ( Malik Yoba ) -- Partnered together for `` eight months seven years ago '' ( c. 2008 ), Reid 's career came to an end ( and put Danny 's in jeopardy ) when it was revealed that he planted evidence to secure a murder conviction. Detective DeMarcus King ( Flex Alexander ) Detective Ava Hotchkiss ( Yvonna Kopacz Wright ) -- First partner of Danny 's when he was assigned to Major Crimes. Detective First Grade Jackie Curatola ( Jennifer Esposito ) -- From 2010 until 2012, Danny was primarily partnered with Detective Jackie Curatola at the 54th Precinct. In 2012, Jackie took early retirement from the NYPD after starting to show signs of burning out. Detective Kate Lansing ( Megan Ketch ) -- Assigned to replace Detective Curatola in 2012, Detective Kate Lansing worked with Danny for almost three months. She transferred back to Internal Affairs after the arrest of Captain Derek Elwood ( Nestor Serrano ), who framed Danny for possession of narcotics in order to prevent him from discovering his gambling problem. Detective Candice `` Mac '' McElroy ( Megan Boone ) -- A temporary addition to the 54th Precinct, Detective Candice McElroy briefly served as Danny 's partner in 2013. Detective First Grade Maria Baez ( Marisa Ramirez ) -- Danny 's partner since 2013. Previously spent three years with the Joint Bank Robbery Task Force until it was disbanded in 2011. Erin Reagan ( Edit ) Erin Reagan Blue Bloods character First appearance `` Pilot '' September 24, 2010 Created by Robin Green Mitchell Burgess Portrayed by Bridget Moynahan Information Full name Erin Reagan Gender Female Occupation Prosecutor Family Frank Reagan ( father ) Mary Margaret Reagan ( mother ) † Daniel Fitzgerald `` Danny '' Reagan ( older brother ) Joseph Conor `` Joe '' Reagan ( younger brother ) † Jamison `` Jamie '' Reagan ( younger brother ) Spouse ( s ) Jack Boyle ( ex-husband ) Significant other ( s ) Charles Rosselini ( romantic interest ) Jacob Krystal ( romantic interest ) Jack Boyle ( fling ) Robert McCoy ( ex-boyfriend ) Children Nicky Reagan Relatives Henry Reagan ( grandfather ) Betty Reagan ( grandmother ) † Peter Christopher Reagan ( uncle ) † Charles Reagan ( great - grandfather ) † Linda Reagan ( sister - in - law ) † Eddie Janko ( future sister - in - law ) Jack Reagan ( nephew ) Sean Reagan ( nephew ) Religion Catholic Nationality American DA career Department Manhattan District Attorney 's Office Years of service 2000s -- Present Rank Deputy Bureau Chief Assistant District Attorney Erin Reagan is Frank Reagan 's sole daughter. She is portrayed by Bridget Moynahan. Biography ( Edit ) A New York County Assistant District Attorney and single mother, Erin is the second child and only daughter of the current New York City Police Commissioner Frank Reagan and his wife Mary. She grew up in Bay Ridge, Brooklyn, with three brothers, Danny, Joe, and Jamie. It is implied throughout the series that she had something of a wild streak growing up ( unlike her daughter ). In season 5, it is mentioned that she graduated top of her class from Columbia University ; she later went on to attend Fordham University School of Law. In season 6, Erin celebrated her 40th birthday. Erin is divorced from John `` Jack '' Boyle ( Peter Hermann ), a criminal defense attorney, whom she met when they were 19. In `` Old Wounds '', she finally changes her name from Erin Reagan - Boyle back to Erin Reagan. Since her divorce, Erin has had a few romantic interests. She and her boss, District Attorney Charles Rosselini ( Bobby Cannavale ), flirted with each other and even shared a kiss after a date, but nothing ever came of it mainly due to Erin 's reluctance with the idea of dating her boss. In 2011, she met Jacob Krystal ( Fred Weller ) at an art gallery ; she later learned that he was an art thief who returned once - stolen works to their rightful owners, and he left town. In 2013, after being shot in a courtroom hostage situation, she started up a fling with her ex-husband Jack but broke up when they started getting serious again ( lest he break her heart again, or their daughter find out that they were once again `` hooking up '' ). In 2014, she met Robert McCoy, a defense attorney, on a speed - date, and the two became romantically involved until he was appointed interim District Attorney, at which point she said she ca n't sleep with her boss. Erin is almost raped and killed in `` Re-Do '', though Frank saves her life by shooting her attacker dead. In `` To Protect and Serve '', Erin is taken hostage and shot in the arm at the courthouse. She is saved by Danny after he says a coded message, `` Please, do n't hurt my family, '' after which she dropped to the ground, and Danny shot her assailant. It is revealed that their father taught them this when they were young, as a plan in case one of them was ever held at gunpoint. In `` Working Girls '', Erin is offered the position of Deputy Mayor of Operations by Mayor Poole, but she turns him down. In `` Ends and Means '', Erin is promoted from Senior Counsel to Deputy Bureau Chief of the Trial Bureau. In the season four finale, she filed a complaint against her boss, Bureau Chief Amanda Harris, upon learning she had abused her power. In season six, Erin was considered for a judgeship. Like the rest of her family, Erin is licensed to carry a firearm. Her weapon of choice is the Glock 19 in 9 × 19mm and, according to Frank, she 's a better shot than Danny and Jamie. In season 8, we found out Erin wanted to join the police force like her family, wanted to take the exam but it was n't for her and chose law and become a prosecutor. Jamie Reagan ( Edit ) Jamie Reagan Blue Bloods character First appearance `` Pilot '' September 24, 2010 Created by Robin Green Mitchell Burgess Portrayed by Will Estes Information Full name Jamison Reagan Aliases Jimmy Riordan Gender Male Occupation Police officer Family Frank Reagan ( father ) Mary Margaret Reagan ( mother ) † Daniel Fitzgerald `` Danny '' Reagan ( older brother ) Erin Reagan ( older sister ) Joseph Conor `` Joe '' Reagan ( older brother ) † Significant other ( s ) Sydney Davenport ( ex-fiancée ) Laura Peck ( former romantic interest ) Bianca Sanfino ( former romantic interest ) Dana ( fling ) Eddie Janko ( Fiancée ) Relatives Henry Reagan ( grandfather ) Betty Reagan ( grandmother ) † Peter Christopher Reagan ( uncle ) † Charles Reagan ( great - grandfather ) † Linda Reagan ( sister - in - law ) † Jack Boyle ( ex-brother - in - law ) Nicky Reagan - Boyle ( niece ) Jack Reagan ( nephew ) Sean Reagan ( nephew ) Religion Catholic Nationality American Police career Department New York City Police Department Years of service 2010 -- Present Rank Officer Awards American Flag Breast Bar NYPD Honorable Mention NYPD Firearms Proficiency Bar Officer Jamison Reagan is the youngest son of Frank Reagan. He is portrayed by Will Estes. Biography ( Edit ) A young police officer and recent Harvard Law School graduate, Jamie is the youngest child of the current New York City Police Commissioner Frank Reagan and his wife Mary. Jamie grew up in Bay Ridge, Brooklyn with two older brothers, Danny and Joe, and an older sister, Erin. His shield number is 60528. He is stationed at the 12th Precinct, and is partnered with Sgt. Anthony Renzulli ( his training officer ) in seasons one and two, Officer Vinny Cruz in season three, and Officer Eddie Janko since season four. During his first year on the job, Jamie was the one who continued Joe Reagan 's investigation into the Blue Templar. In season two, he takes advantage of a chance opportunity to go undercover in the Sanfino crime family. In `` Front Page News '', Jamie gets his first kill in what he learns is a suicide by cop ; the shooting leaves him with brief post-shooting trauma ( more so since Bryant 's death was found to be a suicide - by - cop ), but between his family and the NYPD psychologist ( Annabella Sciorra ), he quickly recovers. In season four, he begins to express concerns because both his father and brother had made detective by that point in their careers, while he is still a patrol officer. In season six, Jamie is studying for and is considering taking the Sergeant 's exam ; however, he ultimately decides against taking it. In season seven, Frank gets wind from the ranks that he may be the only thing holding Jamie back from becoming a detective. When pressed, Jamie informs his father that he 's happy where he is in his career and does n't necessarily want another assignment. In that same episode, it is mentioned that Jamie is the only NYPD employee with a Harvard Law degree that walks a beat. While attending Harvard, Jamie met and became involved with Sydney Davenport and the two even got engaged. However, Sydney broke up with him a few months after he became a police officer when realizing the true danger of his career. Since 2013, there has been significant romantic tension between Jamie and his patrol partner, Eddie Janko, with the two even sharing a kiss. Despite this, Jamie has chosen not to act on his feelings after learning that Sergeant Renzulli would reassign them to new road partners if they did. Despite agreeing to keep things professional, there remained lingering romantic tension between the two. In 2018, Jamie and Eddie get engaged along with choosing to remain as partners on the job after discovering there is no official rule against it. As a uniformed patrol officer, Jamie drives a patrol car on duty and carries a Glock 19 in 9 × 19mm as his duty weapon ; while in plainclothes, Jamie uses the smaller Glock 26 in 9 × 19mm. While off - duty, Jamie drove his brother Joe 's 1971 Chevy Chevelle Malibu SS until it was sabotaged and totaled by the Blue Templar. Partners ( Edit ) Over his career, Jamie has had a few partners. Sergeant Anthony Renzulli ( Nicholas Turturro ) -- Jamie 's training officer, Sgt. Renzulli knows the beat of his precinct very well and often offers Jamie good advice when he needs it. He believes Jamie will make a great cop, and often pokes fun at him for abandoning a lucrative law career. Officer Vincent Cruz ( Sebastian Sozzi ) -- Jamie 's partner who grew up in the Bitterman housing projects neighborhood of New York City. In `` The Bitter End '', Cruz and Jamie are patrolling near the Bitterman Houses and come across a purse snatcher who leads them on a chase through the project. The purse snatching proves to be a setup, and both officers find themselves under fire from Los Lourdes gang members. Cruz is hit twice in the neck and despite Jamie 's best efforts, he dies at the scene from massive internal bleeding. Officer Edit `` Eddie '' Janko ( Vanessa Ray ) -- A younger police officer and Jamie 's current partner. Feisty and strongly opinionated, she is very passionate when it comes to her job. As of late, her latent romantic feelings for Jamie have become more apparent, but they mutually decided not to pursue a romantic relationship lest they lose their partnership. However, they announced their engagement to the Reagan family in the season 8 finale, `` My Aim Is True ''. Henry Reagan ( Edit ) Former Commissioner Henry Reagan is Frank Reagan 's father. He is portrayed by Len Cariou. Biography ( Edit ) The retired Police Commissioner and father of Frank ( grandfather of Danny, Erin, Jamie, and the late Joe ; great - grandfather of Nicky, Sean, and Jack ). His childhood during the 1920s and 1930s was hard due to his father, Charles, an Irish immigrant, World War I veteran and former police officer, being an alcoholic and unable to hold a job. Henry was a Marine in World War II and Korea, and joined the NYPD in 1952. He got married in 1955. Like his grandson Danny, Henry is socially conservative and hates the political correctness of modern law and order. His wife of 46 years, Betty, died December 2, 2001. It is later revealed that Henry and Betty had another son, Peter Christopher, who died of leukemia at the age of 18 months, over a year before Frank was born. In `` Bad Blood '', it was revealed that he once rode with one of the first female patrol officers, Colleen McGuire ( Anita Gillette ). Henry admitted that they both had romantic feelings for each other, but never acted on them since he was married. He had his boss reassign Colleen to a different partner to avoid putting his marriage at further risk, but remained good friends with her. In `` Stomping Grounds '', it was mentioned that Henry, during his days as a Detective with the Vice Squad, transferred out of the unit when he started to see every woman on the street as a hooker. In `` Town Without Pity '', Henry mentioned that during the New York City blackout of 1977 he was stationed in the South Bronx. Notes ( Edit ) Len Cariou, separated in age from Tom Selleck by only six years, wears make - up and a dental prosthetic to appear older. In `` A Night on the Town '' is revealed that Betty had a wooden box in which she put all her `` treasures ''. One of these treasures is a U.S. Army Master sergeant insignia that ca n't be Henry 's or Frank 's insignia because they served in the United States Marine Corps. Linda Reagan ( Edit ) Nurse Linda Rose Reagan ( née O'Shea ) was Danny Reagan 's wife. She was portrayed by Daytime Emmy - nominated actress, Amy Carlson. Biography ( Edit ) The wife of Danny from 1996 -- 2017 and mother of their two sons. She loves her husband and the Reagan family, but at times, Danny 's obsessive attitude toward collaring criminals makes her wonder whether he views his job as a higher priority than his family. In seasons one and two, she is a stay - at - home mom, but she returns to her nursing job at St. Victor 's Medical Center in season three. She has an older sister, Wendy ( Laurie Williams ), and a niece, Sofie, who is a fashion model. She has a brother, Jimmy O'Shea ( Kevin Dillon ), who has been in and out of trouble with the law. In `` New Rules '', Linda is shot at the hospital by a teenage gangbanger who had been ordered to kill a witness, but she eventually makes a full recovery. In `` Under the Gun, '' Linda is mugged while working a community health van in the projects, and uses her father - in - law 's influence to bypass the New York City pistol permitting process to obtain an unresricted concealed carry permit and buys a. 38 Special Smith & Wesson Model 36 revolver. Ultimately she decides she does not want to carry after all, and gives the pistol to Danny. On May 28, 2017 ( between seasons 7 and 8 ), Linda died in a medivac helicopter crash while tending to a patient being air lifted to the hospital. Nicky Reagan - Boyle ( Edit ) Nicole Reagan is Erin Reagan 's daughter. She is portrayed by Sami Gayle. Biography ( Edit ) Erin 's daughter, born October 14, 1996, aspires to become an officer like the rest of her family. As of `` Old Wounds '', she is 16 years old. In season five, she is a high school senior preparing for college ; in season six, she is attending Columbia University, her mother 's alma mater. She is a very curious young girl and is not afraid to question her uncle Danny and great - grandfather about police matters, often challenging their old school conservatism. During the initial seasons her willingness to be a nonconformist was emphasized by her short hair, but in later seasons she grew it out. She wanted to join the family business as the first female Reagan to be a cop. In season 8, Nicky takes the police exam, over her mother 's objections. Notes ( Edit ) In the pilot episode, Nicky is portrayed by Marlene Lawston. Other Reagans ( Edit ) Appearing : Jack Reagan, Danny and Linda 's older son, born circa 2000. He is portrayed by Tony Terraciano. Sean Reagan, Danny and Linda 's younger son, born circa 2004. He is portrayed by Andrew Terraciano, Tony 's younger brother. Mentioned but not portrayed on - screen : Detective 1st Grade Joseph Conor Reagan, son of Frank and Mary, younger brother of Danny and Erin and older brother of Jamie. Joe was a member of the NYPD Warrants Squad partnered with Detective Sonny Malevsky ( Michael T. Weiss ). He was a graduate of John Jay College of Criminal Justice. He was killed on May 15, 2009, by Sonny when Joe learned that he was the leader of a corrupt gang of police officers called the Blue Templar. Joe 's Shield, number 46808, was retired after his death in the line of duty. In `` Cursed '', the Reagans decided to reinstate the number when an officer made a request to wear it in honor of her late father who had the same number in Boston. Mary Margaret Reagan, Frank 's late wife and the mother of his four children, Danny, Erin, Joe, and Jamie. She died on September 14, 2005, of cancer. In `` Fathers and Sons '', it is mentioned that her grandfather helped build the Brooklyn Bridge in the 1870s and ' 80s. Betty Reagan, Henry 's wife of 46 years and the mother of Frank. She died on December 2, 2001. Peter Christopher Reagan, Henry and Betty 's oldest son and Frank 's older brother. He died of leukemia when he was only eighteen months old. Recurring characters ( Edit ) Recurring Actor Character Seasons 5 6 7 8 Robert Clohessy Lieutenant Sidney `` Sid '' Gormley Recurring Gregory Jbara Garrett Moore Recurring Abigail Hawk Detective Abigail Baker Recurring Nicholas Turturro Sergeant Anthony Renzulli Recurring Guest Andrew Terraciano Sean Reagan Recurring Tony Terraciano Jack Reagan Recurring Bruce Altman Mayor Frank Russo Recurring Guest Bobby Cannavale District Attorney Charles Rosselini Recurring Noelle Beck Sue Connors Recurring Dylan Moore Sydney Davenport Recurring David Ramsey Mayor Carter Poole Recurring Guest John Rue Ed Hines Recurring Ato Essandoh Reverend Darnell Potter Recurring Guest John Ventimiglia Dino Arbogast Recurring Guest Recurring Matthew Rauch Lawrence Skolnick Recurring Guest Guest Recurring Peter Hermann Jack Boyle Recurring Guest Recurring Victor Slezak Bureau Chief Bryce Helfond Recurring Guest Guest Sebastian Sozzi Officer Vincent `` Vinny '' Cruz Recurring Megan Boone Detective Candice `` Mac '' McElroy Recurring Megan Ketch Detective Kate Lansing Recurring Brian Roland Richard Guest Recurring Amy Morton Trial Bureau Chief ADA Amanda Harris Guest Recurring Racine Russell Officer Cosgrove Recurring Recurring Bebe Neuwirth Kelly Peterson Recurring Recurring Holt McCallany District Attorney Robert McCoy Guest Recurring James Lesure DA Investigator Alex McBride Recurring Guest LaTanya Richardson Lieutenant Dee Ann Carver Recurring Steve Schirripa Det. Anthony Abetemarco Recurring Pallavi Sastry Cameron Recurring Mark Linn - Baker Carlton Miller Recurring Tamara Tunie Monica Graham Recurring Stacy Keach Archbishop Kevin Kearns Recurring Guest Sarah Mezzanotte Officer Brenda Patimkin Recurring Lorraine Bracco Mayor Margaret Dutton Recurring Nick Cordero Victor Lugo Recurring Sam Simone McKenna Recurring David Zayas Governor Martin Mendez Recurring Associates of Frank ( Edit ) Frank Russo / Robert Levitt ( Edit ) The Mayor of New York City who appointed Frank Reagan to the position of New York City Police Commissioner. He lost the 2011 election to Carter Poole ( David Ramsey ), who succeeded him as Mayor. While he is credited as the character `` Frank Russo '' in Season 1, his name is never actually mentioned. He makes a return appearance in Season 3 when his daughter is arrested by Jamie and Vinny for smoking pot. Here, his character is introduced as `` Former Mayor Robert Levitt ''. He is portrayed by Bruce Altman. Carter Poole ( Edit ) Elected to the position of Mayor of New York City in 2011, Carter Poole and Frank butt heads on occasion, but the two have a mutual respect for each other that Poole says went back to his childhood when Frank was a beat cop in his neighborhood and used to look out for the children. In `` Parenthood '', it is mentioned that he attended Yale University and that he has an illegitimate daughter who does not know about him, aside from the fact that he is the mayor. In `` This Way Out '', he 's shot in an assassination attempt during a town hall meeting by a mentally - challenged teenager who was tricked by a member of the Los Lordes gang operating out of the Bitterman Housing Projects. The shooting leaves the mayor paralyzed from the waist down, confining him to a wheelchair, but does not prevent him from discharging his duties as Mayor. In 2015, he is reelected for another term as Mayor. In 2017, he resigns as Mayor because he is burned out and feels he is not the man to lead the city any longer. He is portrayed by David Ramsey. Margaret Dutton ( Edit ) The New York City Public Advocate under Mayor Carter Poole, Margaret Dutton ascended to the position of interim Mayor of New York City in 2017 after the Mayor 's resignation. She is portrayed by Lorraine Bracco. As Mayor, she is aided by Carlton Miller, who is portrayed by Mark Linn - Baker. Martin mendez ( Edit ) The Governor of New York, known for his thin skin. He is portrayed by David Zayas. Abigail Baker ( Edit ) Detective 1st Grade Abigail Baker is a member of the Police Commissioner 's ( Detective ) Squad who serves as Frank 's primary aide. She was credited in Season 1 as `` Det. Melissa Baker '', however was referred to as Abigail throughout the season and the name was changed in Season 2. Baker is portrayed by Abigail Hawk. In `` Manhattan Queens '', Baker was harassed by Suffolk County Police Department Deputy Chief Sam DeLuca, who had a romantic interest in her. In the same episode it is revealed that she is from Ocean Bay Park and her parents still live there. She speaks fluent Japanese. Frank mentions she is happily married in season 6 when questioned by his former partner Lenny. She subsequently became pregnant and gave birth during season 7. Having been with Frank for nine years as of season 8 's `` Heavy Is the Head '', Baker longs for more active detective work despite Frank 's assurances that he needs her and often leans on her detective 's instincts. She receives an offer working for newly - promoted Captain Bullman, who used to be her sergeant, but Frank refuses to let her resign. Frank reluctantly tells Abigail later that he found out Bullman mainly wanted to hire her to have someone in his ranks who could pull favors at 1PP. Garrett moore ( Edit ) The NYPD Deputy Commissioner of Public Information, who becomes Frank 's de facto chief of staff. Before becoming Frank 's DCPI, Garrett was a reporter. He has been married and divorced three times, and has a stepson, whom he has tried to keep out of trouble. Garrett and Frank have a rather complex relationship ; for example, Frank often expresses dismay when Garrett comes into his office unannounced but also seemingly values his perspective. Furthermore, many episodes depict the two debating an issue regarding what information should or should not be released to the public. In `` Nightmares '', a woman in Atlantic City, New Jersey accused him of rape, but the allegations were proven to be false when it was revealed that the woman in question was a prostitute who slept with rich married men and then blackmailed them. He is portrayed by Gregory Jbara. Dino Arbogast ( Edit ) Formerly the Organized Crime Control Bureau Chief, Dino Arbogast was promoted to Chief of Department ( the highest - ranking uniformed police officer ) by Frank after the retirement of the previous Chief, Ed Hines. Dino maintains this role for season 4, until the finale, when he 's forced to resign after being caught on video committing lewd acts with an escort hired by a recently deceased brothel madam, and lying about it, and benching Danny in an attempt to keep the act from being discovered. He is portrayed by John Ventimiglia. Kelly Peterson ( Edit ) The newly appointed Inspector General of the NYPD, Kelly Peterson is a former member of the Essex County Prosecutor 's Office in New Jersey. In the season 4 finale, Peterson tells Commissioner Reagan about her intent to resign, after finding that she does not have enough `` professional animosity '' toward the NYPD due to becoming too close to Frank. She is portrayed by Bebe Neuwirth. In season 8, Peterson returns as the Corporation Counsel of New York City. Sidney Gormley ( Edit ) The Supervisor of the 54th Precinct 's Detective Squad, Sergeant Sidney Gormley was Danny 's boss for over four years. He was frequently exasperated by his subordinate. He lives in New Hyde Park with his wife, Sheila ( Cady Huffman ), and, according to the certificate in his office, is a graduate of New York University. In `` Flags of Our Fathers '', Gormley mentions that he is a veteran, and that he lost a grandfather and two uncles in the service. Early in season 5, Gormley is reassigned by Frank to One Police Plaza and appointed as Dino 's replacement as Chief of Department. However, due to Gormley not being high enough in rank to be eligible for Chief of Department ( who must be at least a captain or higher ), he is given the job title `` Special Assistant to the Commissioner '', which gives him the authorities of the Chief of Department though not the pay grade or privileges. In this capacity, Gormley acts as Frank 's liaison to the rank and file. He is later on promoted to Lieutenant. He is portrayed by Robert Clohessy. Senior NYPD officers ( Edit ) First Deputy Commissioner Vincenzo, NYPD -- Frank 's 2nd - in - Command ; he was considered for the position of New York City Police Commissioner, but the Mayor ultimately appointed Frank to the position. He is portrayed by John Bedford Lloyd. Chief of Department & former Chief of Detectives Ed Hines, NYPD ( Ret. 2013 ) -- The highest - ranking uniformed police officer ; he is portrayed by John Rue. Bureau Chief Bryce Helfond, NYPD -- The NYPD Chief of Intelligence ; he is portrayed by Victor Slezak Assistant Chief Donald Kent -- The Chief of the NYPD Gang Division and a longtime friend of Frank ; the day he was promoted to Assistant Chief, he and Maggie, his wife of 30 years, were killed in a drive - by the Warrior Kings gang. He was portrayed by Dennis Haysbert. Deputy Chief Trevor Jackson -- The longtime commander of the New York City Police Department Emergency Service Unit who was forced into mandatory retirement at the age of 63. He is portrayed by Isaiah Washington. Associates of Danny ( Edit ) Jackie Curatola ( Edit ) Detective 1st Grade Jackie Curatola was Danny 's previous partner ; she is divorced and is regularly the recipient of passes or ogling from her uniformed colleagues and perps alike, much to her annoyance. In 2012, Jackie took early retirement from the NYPD after starting to show signs of burning out. She is portrayed by Jennifer Esposito. As a detective with the NYPD, Jackie carried a Glock 19 in 9 × 19mm as her duty weapon. Kate Lansing ( Edit ) Assigned to replace Detective Curatola in 2012, Detective Kate Lansing worked with Danny for almost three months. She transferred back to Internal Affairs after the arrest of Captain Derek Elwood ( Nestor Serrano ), who framed Danny for possession of narcotics in order to prevent him from discovering his gambling problem. She is portrayed by Megan Ketch. Maria Baez ( Edit ) Danny 's partner since 2013 ( and someone Danny has known for 15 years ), Detective 1st Grade Maria Baez previously spent three years with the NYPD 's Joint Bank Robbery Task Force until it was disbanded in 2011. In `` Bad Blood '', it is revealed that she has an older brother, Javier ( Kirk Acevedo ), who is a recovering drug addict, and her mother, Carmen Baez ( Saundra Santiago ), and her sister, Ana Baez ( Liza Colón - Zayas ), are introduced in `` Stomping Grounds ''. Before transferring to the 54th Precinct, Maria fell hard for Detective Jimmy Mosely ( Johnathon Schaech ), but their relationship fizzled out when he refused to leave his wife for her. In `` Partners '', Javier revealed that he is an informant for the DEA against a drug cartel ; he dies saving Maria 's life in a raid on that cartel. In `` Love Stories '', she and Danny are awarded the NYPD Medal for Valor for their actions in `` Partners ''. During season 7, Danny claims that Baez has difficulty establishing or maintaining romantic relationships. She is portrayed by Marisa Ramirez. Dee Ann Carver ( Edit ) The new Commander of the 54th Precinct 's Detective Squad, Lieutenant Dee Ann Carver is Danny 's strict, by - the - book boss who took over after Sgt. Gormley was transferred to 1PP. She is portrayed by LaTanya Richardson Jackson. She is the adoptive mother of a baby girl whose father committed suicide in front of her and Danny, despite their best efforts to talk him down. Associates of Erin ( Edit ) Jack Boyle ( Edit ) Erin 's ex-husband and Nicky 's father, Jack Boyle is a formidable defense attorney. Due to his actions after the divorce ( including moving away and not keeping in contact with his daughter ), Jack is not very well liked by the adults in the Reagan family ( although his nephews, Jack and Sean, are both excited to see him when he returns to New York ). When Danny was framed for narcotics possession, Henry hired Jack as his attorney. Jack and Erin briefly got back together after surviving a courtroom hostage crisis, but Erin ended it when they started getting serious again ( lest he break her heart again, or their daughter find out that they were once again `` hooking up '' ). Jack did return in 2017 to represent a man that Erin is trying to convict. This time Jack came out on top. Erin also learned of Jack 's relationship with a woman who is a few years older than Nicky, which did not last long. Late in season 8, Erin confesses to Anthony that she is dating Jack again. Jack is portrayed by Peter Hermann. Charles Rosselini ( Edit ) Erin 's boss in the first season, Charles Rosselini is the New York County District Attorney with aspirations of higher office. He is portrayed by Bobby Cannavale. Amanda Harris ( Edit ) The Bureau Chief of the Manhattan District Attorney 's Trial Bureau, Amanda Harris promoted Erin to Deputy Bureau Chief. She almost fires Erin after she calls her out on violating Brady Rules by not providing the defense with video footage that may have exonerated a previous rape suspect ; Harris ends up keeping Erin, saying that she needs someone like her to keep her in check. Regardless of this, Harris is eventually arrested after Erin finds out that she has a long - standing deal with a recently deceased high - profile madam who has her people seduce high - profile New Yorkers of major influence -- like high - level cops, politicians, pro athletes, and various celebrities -- and get them on tape in order to guarantee their assistance whenever she needs it. ( Whether this assistance is solely for cases or possibly for darker, personal reasons is left open to speculation. ) She is portrayed by Amy Morton. Robert McCoy ( Edit ) A defense attorney Erin met on a speed - date. He was an Assistant District Attorney in Brooklyn for twelve years before leaving to join private practice in 2008. After Bureau Chief Amanda Harris was fired, McCoy was appointed the interim New York County District Attorney. This caused Erin to break off their relationship, saying she ca n't sleep with her boss. He is portrayed by Holt McCallany. As the interim DA, McCoy came into conflict with Commissioner Reagan when he announced that the DA 's office did not plan on prosecuting petty marijuana possession charges. Alex McBride ( Edit ) A member of the DA 's Investigations Unit who assists Erin with her cases. He is portrayed by James Lesure. In 1995, McBride 's mother was murdered in an unsolved robbery. When Erin finds the case in a cold - case pile, she runs DNA found at the scene, which reveals what McBride already suspected, but was afraid to confirm : that his father had been responsible. Anthony Abetemarco ( Edit ) A Detective for the DA 's Investigations Unit who assists Erin with her cases. In `` Friends in Need '' it is revealed his cousin is Joey Ruscoli ( Anthony DeSando ) and his aunt is Sophia Ruscoli ( Catherine Wolf ). In `` Good Cop Bad Cop '' it is revealed that his mother is Lucille Abetemarco ( Suzanne Shepherd ). In `` The Brave '' it is revealed that his ex-wife is Vivien Abetemarco ( Diana Bologna ) and that his daughter is Sophia Abetemarco ( Isabel Harper Leight ). He and Danny do n't personally get along, but are willing to work together when necessary. He is portrayed by Steve Schirripa. Associates of Jamie ( Edit ) Anthony Renzulli ( Edit ) Jamie 's first partner and Training Officer, Sergeant Tony Renzulli knows the beat of his precinct very well and often offers Jamie good advice when he needs it. He believes Jamie will make a great cop, and often pokes fun at him for abandoning a lucrative law career. He was also the Training Officer for Joe. In season 3, he moves to an apparent desk job managing the patrolmen of the 12th Precinct. He is married, and has a side job painting to make extra money ; he is also a gambler, but quit after Frank bailed him out of a $3,000 debt ( with it made clear that this is a one - time offer ). He is portrayed by Nicholas Turturro. As a uniformed patrol supervisor, Sgt. Renzulli drives a patrol car on duty and carries a Glock 19 in 9 × 19mm as his duty weapon. Vinny Cruz ( Edit ) Vinny, shield number 59910, is Jamie 's partner in season 3. He 's a child of the Bittarman housing projects in Brooklyn. In `` The Bitter End '', he is killed when he and Jamie are lured by a purse snatcher into the Bittarman projects, and Vinny is shot by a sniper on a rooftop. He is posthumously promoted to Detective 1st Grade. He was portrayed by Sebastian Sozzi. As a uniformed patrol officer, Vinny drove a patrol car on duty and carried a Glock 19 in 9 × 19mm as his duty weapon. Eddie Janko ( Edit ) Jamie 's current partner and fiancèe, Officer Edit `` Eddie '' Janko ( pronounced `` eh - DEET '' ) is of mixed Hungarian and Serbian descent. Feisty and strongly opinionated, she is very passionate when it comes to her job. She is portrayed by Vanessa Ray. Eddie 's mother immigrated from Serbia and she herself is fluent in the Serbian language, which comes in handy when Danny recruits her to bust a sex trafficking ring. Her father, Armin Janko ( William Sadler ) was a financial advisor before his company was revealed to be involved in a Ponzi scheme, ruining a lot of good people. As a result, he is serving a prison sentence. He gets a lighter sentence after busting a prison guard drug ring. In `` The Bullitt Mustang '', Eddie is one of several police officers charged with official misconduct by the acting New York County District Attorney for fixing her 90 - year - old neighbor 's parking tickets ; the charges are subsequently dropped after Frank and Erin work out a deal. In `` Back in the Day '', Eddie reveals her aspirations of making detective, having signed herself and Jamie up for a surveillance assignment for one of the precinct 's detectives. While awaiting their target, Eddie chose to remain at her post when Jamie chose to respond to an officer - down call, which proved to be false. This led to a brief conflict between them, with Jamie threatening to get a new partner if she ever goes against an emergency call again. There has been significant romantic tension between Eddie and Jamie since the middle of season four, the two even sharing a kiss. Despite their attraction, Jamie had chosen not to act on his feelings after learning that Renzulli would reassign them to new partners per NYPD protocol. Nevertheless, there continued to be romantic tension lingering between the two, which had become much more apparent when they both acknowledged to each other how they feel, leading to another kiss. Despite this, they agreed not to further act on their feelings since they do n't wish to jeopardize their partnership. In the season 8 finale, after a life - threatening situation, Jamie and Eddie accepted their feelings and got engaged. When they announced their engagement to the Reagan family, Frank offered Eddie her choice of a new precinct assignment. However, Jamie pointed out that there is no actual regulation prohibiting married NYPD officers from being partnered on the job. Therefore, they have decided to remain partners as well. As a uniformed patrol officer, Eddie drives a patrol car on duty and carries a Glock 19 in 9 × 19mm as her duty weapon. Others ( Edit ) Darnell Potter ( Edit ) A community social - activist preacher, portrayed by Ato Essandoh, who feels it is his duty to protect people of color ( particularly those in his neighborhood ) from the brutality and racial profiling of the NYPD. In `` Excessive Force '', when a criminal Danny was pursuing purposely jumped out a window and falsely claimed that Danny pushed him. Potter, seeking to further his own agenda, relocated a young witness and his entire illegal family, and demanded to Commissioner Reagan to have his son take an early retirement. Potter is nearly arrested by Commissioner Reagan for witness tampering, but Frank lets him off with a warning in order for him to save face with his congregation. In season 7 Potter suffers a personal tragedy when his teenage son is murdered by one of the youths he once sheltered ; Frank consoles him, revealing that his son Joe was killed by a corrupt cop. This, along with Danny 's successful capture of the killer, softens some of Potter 's bitterness towards the Reagans. References ( Edit ) Jump up ^ `` Men in Black ''. Blue Bloods. Season 3. Episode 14. February 8, 2013. ^ Jump up to : `` The Blue Templar ''. Blue Bloods. Season 1. Episode 22. May 13, 2011. ^ Jump up to : `` Ends and Means ''. Blue Bloods. Season 3. Episode 20. April 12, 2013. ^ Jump up to : `` Fathers and Sons ''. Blue Bloods. Season 3. Episode 10. January 4, 2013. Jump up ^ `` Justice Served ''. Blue Bloods. Season 4. Episode 8. November 15, 2013. ^ Jump up to : `` The Bitter End ''. Blue Bloods. Season 3. Episode 22. May 3, 2013. Jump up ^ `` Domestic Disturbance ''. Blue Bloods. Season 3. Episode 2. October 5, 2012. Jump up ^ `` Unfinished Business ''. Blue Bloods. Season 4. Episode 13. January 17, 2014. ^ Jump up to : `` Dedication ''. Blue Bloods. Season 1. Episode 15. February 18, 2011. ^ Jump up to : `` Bad Blood ''. Blue Bloods. Season 4. Episode 9. November 22, 2013. ^ Jump up to : `` Critical Condition ''. Blue Bloods. Season 2. Episode 3. October 7, 2011. ^ Jump up to : `` Lost and Found ''. Blue Bloods. Season 4. Episode 5. October 25, 2013. ^ Jump up to : `` Officer Down ''. Blue Bloods. Season 1. Episode 4. October 15, 2010. ^ Jump up to : `` Mercy ''. Blue Bloods. Season 2. Episode 1. September 23, 2011. ^ Jump up to : `` Hold Outs ''. Blue Bloods. Season 6. Episode 9. November 20, 2015. Jump up ^ `` Fresh Start ''. Blue Bloods. Season 6. Episode 15. February 19, 2016. ^ Jump up to : `` Righting Wrongs ''. Blue Bloods. Season 4. Episode 18. April 4, 2014. ^ Jump up to : `` This Way Out ''. Blue Bloods. Season 3. Episode 23. May 10, 2013. ^ Jump up to : `` Blast From The Past ''. Blue Bloods. Season 6. Episode 19. April 8, 2016. Jump up ^ `` Unsung Heroes ''. Blue Bloods. Season 6. Episode 8. November 13, 2015. Jump up ^ `` Cutting Losses ''. Blue Bloods. Season 7. Episode 1. September 29, 2017. ^ Jump up to : `` Family Business ''. Blue Bloods. Season 3. Episode 1. September 28, 2012. ^ Jump up to : `` After Hours ''. Blue Bloods. Season 1. Episode 10. December 3, 2010. ^ Jump up to : `` Back in the Day ''. Blue Bloods. Season 6. Episode 11. January 8, 2016. Jump up ^ `` Love Stories ''. Blue Bloods. Season 5. Episode 13. January 30, 2015. Jump up ^ `` Little Fish ''. Blue Bloods. Season 1. Episode 11. January 19, 2011. Jump up ^ `` Family Ties ''. Blue Bloods. Season 1. Episode 12. January 26, 2011. ^ Jump up to : `` Pilot ''. Blue Bloods. Season 1. Episode 1. September 24, 2010. Jump up ^ `` The Job ''. Blue Bloods. Season 2. Episode 12. February 3, 2012. Jump up ^ `` Growing Boys ''. Blue Bloods. Season 4. Episode 6. November 1, 2013. Jump up ^ `` Age of Innocence ''. Blue Bloods. Season 1. Episode 16. February 25, 2011. Jump up ^ `` Silver Star ''. Blue Bloods. Season 1. Episode 17. March 11, 2011. Jump up ^ `` Secret Arrangements ''. Blue Bloods. Season 4. Episode 19. April 11, 2014. ^ Jump up to : `` Most Wanted ''. Blue Bloods. Season 5. Episode 6. October 31, 2014. ^ Jump up to : `` Flags of Our Fathers ''. Blue Bloods. Season 6. Episode 10. December 11, 2015. Jump up ^ http://www.imdb.com/name/nm0465670/ ^ Jump up to : `` Nightmares ''. Blue Bloods. Season 3. Episode 7. November 9, 2012. ^ Jump up to : `` Framed ''. Blue Bloods. Season 3. Episode 12. January 18, 2013. Jump up ^ `` Inside Jobs ''. Blue Bloods. Season 3. Episode 13. February 1, 2013. Jump up ^ `` Protest Too Much ''. Blue Bloods. Season 3. Episode 17. March 8, 2013. Jump up ^ `` Love Lost ''. Blue Bloods. Season 7. Episode 19. April 7, 2017. ^ Jump up to : `` The Bullet Mustang ''. Blue Bloods. Season 6. Episode 7. November 6, 2015. ^ Jump up to : `` Old Wounds ''. Blue Bloods. Season 3. Episode 3. October 12, 2012. Jump up ^ `` Re-Do ''. Blue Bloods. Season 1. Episode 9. November 19, 2010. ^ Jump up to : `` To Protect and Serve ''. Blue Bloods. Season 4. Episode 3. October 11, 2013. Jump up ^ `` Working Girls ''. Blue Bloods. Season 2. Episode 20. April 27, 2012. ^ Jump up to : `` Exiles ''. Blue Bloods. Season 4. Episode 22. May 9, 2014. Jump up ^ `` Absolute Power ''. Blue Bloods. Season 6. Episode 2. October 2, 2005. Jump up ^ `` Cellar Boy ''. Blue Bloods. Season 1. Episode 21. May 6, 2011. ^ Jump up to : `` Unwritten Rules ''. Blue Bloods. Season 4. Episode 1. September 27, 2013. ^ Jump up to : `` Stomping Grounds ''. Blue Bloods. Season 6. Episode 13. January 22, 2016. Jump up ^ `` Town Without Pity ''. Blue Bloods. Season 6. Episode 18. April 1, 2016. Jump up ^ `` Model Behavior ''. Blue Bloods. Season 1. Episode 19. April 8, 2011. Jump up ^ `` Hard Bargain ''. Blue Bloods. Season 7. Episode 16. February 17, 2017. Jump up ^ `` The Art of War ''. Blue Bloods. Season 5. Episode 22. May 1, 2015. Jump up ^ Reale, Willie ; and Wade, Kevin. Blue Bloods, Episode 5 / 09, `` Under the Gun. '' First aired December 12, 2014. Retrieved May 18, 2017. ^ Jump up to : `` The Truth About Lying ''. Blue Bloods. Season 4. Episode 4. October 18, 2013. Jump up ^ `` Cursed ''. Blue Bloods. Season 6. Episode 12. January 15, 2016. Jump up ^ `` Parenthood ''. Blue Bloods. Season 2. Episode 14. February 17, 2012. Jump up ^ `` Drawing Dead ''. Blue Bloods. Season 4. Episode 7. November 8, 2013. Jump up ^ `` Manhattan Queens ''. Blue Bloods. Season 4. Episode 14. January 31, 2014. Jump up ^ `` A Night on the Town ''. Blue Bloods. Season 2. Episode 5. October 21, 2011. ^ Jump up to : `` Excessive Force ''. Blue Bloods. Season 5. Episode 4. October 17, 2014. Jump up ^ `` Sins of the Father ''. Blue Bloods. Season 5. Episode 10. January 2, 2015. Jump up ^ http://www.imdb.com/name/nm1600051/ Jump up ^ http://beaufortcountynow.com/addon/tv&p=1&tvid=32692&episode=22&tvseason=2&tvname=Blue%20Bloods Jump up ^ `` New Rules ''. Blue Bloods. Season 5. Episode 21. April 24, 2015. Jump up ^ `` Partners ''. Blue Bloods. Season 5. Episode 1. September 26, 2014. Jump up ^ `` Forgive and Forget ''. Blue Bloods. Season 5. Episode 2. October 3, 2014. Jump up ^ `` Shoot the Messenger ''. Blue Bloods. Season 5. Episode 7. November 7, 2014. Jump up ^ `` Through The Looking Glass ''. Blue Bloods. Season 5. Episode 19. April 3, 2015. Jump up ^ TV Show credits Jump up ^ `` Bad Company ''. Blue Bloods. Season 5. Episode 18. March 13, 2015. hide Blue Bloods Characters Episodes Seasons 5 6 7 8 Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_Blue_Bloods_characters&oldid=846362862 '' Categories : Blue Bloods ( TV series ) Fictional American people of Irish descent Fictional characters from New York City Fictional characters introduced in 2010 Fictional New York City Police Department officers Lists of American crime television series characters Lists of American drama television series characters Hidden categories : Articles lacking reliable references from December 2015 All articles lacking reliable references Articles using Infobox character with multiple unlabeled fields Pages using deprecated image syntax Talk Contents About Wikipedia Add links This page was last edited on 18 June 2018, at 08 : 21. 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. 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Question: who plays linda reagans brother on blue bloods
Answer: Donnie Wahlberg