# Chicago (franchise)

The Chicago franchise (also called One Chicago) is a media franchise of American television programs created by Derek Haas, Michael Brandt, and Dick Wolf, produced by Wolf Entertainment, and broadcast on NBC, all of which deal with different public services in Chicago, Illinois. The Chicago franchise has maintained strong ratings, leading primetime in total viewers, averaging nearly seven million viewers per show, between Chicago Fire, Chicago P.D., and Chicago Med.
Four television series make up the Chicago franchise: Fire, P.D., Med, and Justice. All series in total amount to 707 episodes across 36 seasons of television.

## Television series

The Chicago franchise focuses on the professional and private lives of the firefighters, police officers, emergency medical personnel, and legal professionals who serve the city of Chicago. A recurring and unifying theme of the four shows is Molly's, a small bar owned by three firefighters which has been frequented by characters from all four shows. Dick Wolf has stated that most episodes in the franchise will end with a scene at Molly's, saying that "it's a great note on the end of every show that connects all the shows".
On September 26, 2018, NBC moved all three shows into consecutive time slots on Wednesday. On February 28, 2019, NBC renewed Chicago Fire, Chicago P.D., and Chicago Med for their eighth, seventh, and fifth seasons, respectively. All three Chicago shows will keep their respective time slots for the 2019–20 television season. On March 13, 2020, the production of season 5 of Med, 8 of Fire, and 7 of P.D. were suspended due to the COVID-19 pandemic.

### Chicago Fire

Chicago Fire follows the firefighters, paramedics, and rescue squad members of Chicago Fire Department Firehouse 51.

### Chicago P.D.

Chicago P.D. follows the uniformed patrol officers and detectives of the Chicago Police Department's 21st District, specifically the Intelligence Unit. The Chicago Fire episode "Let Her Go" serves as the backdoor pilot.

### Chicago Med

Chicago Med follows the doctors and nurses of Gaffney Chicago Medical Center. The Chicago Fire episode "I Am the Apocalypse" serves as the backdoor pilot.

### Chicago Justice

Chicago Justice followed the prosecutors and investigators at the Cook County State's Attorney's Office. The Chicago P.D. episode "Justice" served as the backdoor pilot. The series was canceled after one season.

## Series overview

| Series | Season | Episodes | Episodes | Originally released | Originally released | Showrunner | Rank | Average viewers (million) | Status |
| Series | Season | Episodes | Episodes | First released | Last released | Showrunner | Rank | Average viewers (million) | Status |
| Chicago Fire | 1 | 24 | 24 | October 10, 2012 (2012-10-10) | May 22, 2013 (2013-05-22) | Matt Olmstead, Michael Brandt, and Derek Haas | 51 | 7.78 | Released |
| Chicago Fire | 2 | 22 | 22 | September 24, 2013 (2013-09-24) | May 13, 2014 (2014-05-13) | Matt Olmstead, Michael Brandt, and Derek Haas | 31 | 9.70 | Released |
| Chicago Fire | 3 | 23 | 23 | September 23, 2014 (2014-09-23) | May 12, 2015 (2015-05-12) | Matt Olmstead, Michael Brandt, Derek Haas, and Dick Wolf | 47 | 9.65 | Released |
| Chicago Fire | 4 | 23 | 23 | October 13, 2015 (2015-10-13) | May 17, 2016 (2016-05-17) | Matt Olmstead, Michael Brandt, and Derek Haas | 31 | 10.47 | Released |
| Chicago Fire | 5 | 22 | 22 | October 11, 2016 (2016-10-11) | May 16, 2017 (2017-05-16) | Matt Olmstead, Michael Brandt, and Derek Haas | 26 | 9.92 | Released |
| Chicago Fire | 6 | 23 | 23 | September 28, 2017 (2017-09-28) | May 10, 2018 (2018-05-10) | Derek Haas | 29 | 9.67 | Released |
| Chicago Fire | 7 | 22 | 22 | September 26, 2018 (2018-09-26) | May 22, 2019 (2019-05-22) | Derek Haas | 14 | 11.37 | Released |
| Chicago Fire | 8 | 20 | 20 | September 25, 2019 (2019-09-25) | April 15, 2020 (2020-04-15) | Derek Haas | 8 | 11.70 | Released |
| Chicago Fire | 9 | 16 | 16 | November 11, 2020 (2020-11-11) | May 26, 2021 (2021-05-26) | Derek Haas | 7 | 10.23 | Released |
| Chicago Fire | 10 | 22 | 22 | September 22, 2021 (2021-09-22) | May 25, 2022 (2022-05-25) | Derek Haas and Andrea Newman | 7 | 9.81 | Released |
| Chicago Fire | 11 | 22 | 22 | September 21, 2022 (2022-09-21) | May 24, 2023 (2023-05-24) | Derek Haas and Andrea Newman | 5 | 9.25 | Released |
| Chicago Fire | 12 | 13 | 13 | January 17, 2024 (2024-01-17) | May 22, 2024 (2024-05-22) | Andrea Newman | 8 | 8.79 | Released |
| Chicago Fire | 13 | TBA | TBA | September 25, 2024 (2024-09-25) | TBA | Andrea Newman | TBA | TBA | Airing |
| Chicago P.D. | Backdoor pilot | Backdoor pilot | Backdoor pilot | May 15, 2013 (2013-05-15) | May 15, 2013 (2013-05-15) | Matt Olmstead, Michael Brandt, and Derek Haas | — | 6.90 | Released |
| Chicago P.D. | 1 | 15 | 15 | January 8, 2014 (2014-01-08) | May 21, 2014 (2014-05-21) | Matt Olmstead | 50 | 8.03 | Released |
| Chicago P.D. | 2 | 23 | 23 | September 24, 2014 (2014-09-24) | May 20, 2015 (2015-05-20) | Matt Olmstead, Michael Brandt, Derek Haas, and Dick Wolf | 51 | 8.74 | Released |
| Chicago P.D. | 3 | 23 | 23 | September 30, 2015 (2015-09-30) | May 25, 2016 (2016-05-25) | Matt Olmstead, Michael Brandt, and Derek Haas | 47 | 8.71 | Released |
| Chicago P.D. | 4 | 23 | 23 | September 21, 2016 (2016-09-21) | May 17, 2017 (2017-05-17) | Matt Olmstead, Michael Brandt, and Derek Haas | 36 | 8.48 | Released |
| Chicago P.D. | 5 | 22 | 22 | September 27, 2017 (2017-09-27) | May 9, 2018 (2018-05-09) | Richard Eid | 24 | 10.32 | Released |
| Chicago P.D. | 6 | 22 | 22 | September 26, 2018 (2018-09-26) | May 22, 2019 (2019-05-22) | Richard Eid | 18 | 11.18 | Released |
| Chicago P.D. | 7 | 20 | 20 | September 25, 2019 (2019-09-25) | April 15, 2020 (2020-04-15) | Richard Eid | 11 | 11.23 | Released |
| Chicago P.D. | 8 | 16 | 16 | November 11, 2020 (2020-11-11) | May 26, 2021 (2021-05-26) | Richard Eid | 10 | 9.73 | Released |
| Chicago P.D. | 9 | 22 | 22 | September 22, 2021 (2021-09-22) | May 25, 2022 (2022-05-25) | Richard Eid (episodes 1–4) and Gwen Sigan (episode 5–22) | 13 | 9.15 | Released |
| Chicago P.D. | 10 | 22 | 22 | September 21, 2022 (2022-09-21) | May 24, 2023 (2023-05-24) | Gwen Sigan | 11 | 8.27 | Released |
| Chicago P.D. | 11 | 13 | 13 | January 17, 2024 (2024-01-17) | May 22, 2024 (2024-05-22) | Gwen Sigan | 13 | 7.96 | Released |
| Chicago P.D. | 12 | TBA | TBA | September 25, 2024 (2024-09-25) | TBA | Gwen Sigan | TBA | TBA | Airing |
| Chicago Med | Backdoor pilot | Backdoor pilot | Backdoor pilot | April 7, 2015 (2015-04-07) | April 7, 2015 (2015-04-07) | Matt Olmstead, Michael Brandt, Derek Haas, and Dick Wolf | — | 8.43 | Released |
| Chicago Med | 1 | 18 | 18 | November 17, 2015 (2015-11-17) | May 17, 2016 (2016-05-17) | Andrew Dettmann, Andrew Schneider, and Diane Frolov | 37 | 9.83 | Released |
| Chicago Med | 2 | 23 | 23 | September 22, 2016 (2016-09-22) | May 11, 2017 (2017-05-11) | Andrew Schneider and Diane Frolov | 28 | 9.47 | Released |
| Chicago Med | 3 | 20 | 20 | November 21, 2017 (2017-11-21) | May 15, 2018 (2018-05-15) | Andrew Schneider and Diane Frolov | 27 | 10.10 | Released |
| Chicago Med | 4 | 22 | 22 | September 26, 2018 (2018-09-26) | May 22, 2019 (2019-05-22) | Andrew Schneider and Diane Frolov | 15 | 11.04 | Released |
| Chicago Med | 5 | 20 | 20 | September 25, 2019 (2019-09-25) | April 15, 2020 (2020-04-15) | Andrew Schneider and Diane Frolov | 12 | 11.22 | Released |
| Chicago Med | 6 | 16 | 16 | November 11, 2020 (2020-11-11) | May 26, 2021 (2021-05-26) | Andrew Schneider and Diane Frolov | 9 | 9.74 | Released |
| Chicago Med | 7 | 22 | 22 | September 22, 2021 (2021-09-22) | May 25, 2022 (2022-05-25) | Andrew Schneider and Diane Frolov | 11 | 9.11 | Released |
| Chicago Med | 8 | 22 | 22 | September 21, 2022 (2022-09-21) | May 24, 2023 (2023-05-24) | Andrew Schneider and Diane Frolov | 9 | 8.48 | Released |
| Chicago Med | 9 | 13 | 13 | January 17, 2024 (2024-01-17) | May 22, 2024 (2024-05-22) | Andrew Schneider and Diane Frolov | 12 | 8.20 | Released |
| Chicago Med | 10 | TBA | TBA | September 25, 2024 (2024-09-25) | TBA | Allen MacDonald | TBA | TBA | Airing |
| Chicago Justice | Backdoor pilot | Backdoor pilot | Backdoor pilot | May 11, 2016 (2016-05-11) | May 11, 2016 (2016-05-11) | Matt Olmstead, Michael Brandt, and Derek Haas | — | 6.75 | Concluded |
| Chicago Justice | 1 | 13 | 13 | March 1, 2017 (2017-03-01) | May 14, 2017 (2017-05-14) | Michael Chernuchin | 37 | 8.42 | Concluded |

## Main cast

| Series | Character | Appearances | Appearances | Appearances | Appearances | Appearances | Appearances | Actor | Duration |
| Series | Character | Franchise | Franchise | Franchise | Franchise | Universe | Universe | | Actor | Duration |
| Series | Character | Fire | P.D. | Med | Justice | SVU | FBI | Actor | Duration |
| Chicago Fire | Matthew Casey | Main | Guest | Guest | | | | Jesse Spencer | 2012–2021, 2022, 2023, 2024 |
| Chicago Fire | Kelly Severide | Main | Guest | Guest | Guest | | | Taylor Kinney | 2012– |
| Chicago Fire | Gabriela Dawson | Main | Recurring | Guest | | | | Monica Raymund | 2012–2018, 2019 |
| Chicago Fire | Brian "Otis" Zvonecek | Main | Recurring | Guest | | | | Yuri Sardarov | 2012–2019 |
| Chicago Fire | Wallace Boden | Main | Recurring | Guest | Guest | | | Eamonn Walker | 2012–2024, 2025 |
| Chicago Fire | Randall "Mouch" McHolland | Main | Recurring | Guest | | | | Christian Stolte | 2012– |
| Chicago Fire | Joe Cruz | Main | Recurring | Guest | | | | Joe Minoso | 2012– |
| Chicago Fire | Christopher Herrmann | Main | Recurring | Recurring | Guest | | | David Eigenberg | 2012– |
| Chicago Fire | Peter Mills | Main | Guest | | | | | Charlie Barnett | 2012–2015 |
| Chicago Fire | Leslie Shay | Main | Guest | | | | | Lauren German | 2012–2015 |
| Chicago Fire | Hallie Thomas | Main | | | | | | Teri Reeves | 2012–2013 |
| Chicago Fire | Sylvie Brett | Main | Recurring | Recurring | Guest | | | Kara Killmer | 2014–2024 |
| Chicago Fire | Jessica "Chili" Chilton | Main | | Guest | | | | Dora Madison | 2015–2016 |
| Chicago Fire | Jimmy Borelli | Main | Guest | | | | | Steven R. McQueen | 2015–2016 |
| Chicago Fire | Stella Kidd | Main | Guest | Guest | | | | Miranda Rae Mayo | 2016– |
| Chicago Fire | Emily Foster | Main | Guest | Guest | | | | Annie Ilonzeh | 2018–2020 |
| Chicago Fire | Darren Ritter | Main | Guest | Guest | | | | Daniel Kyri | 2018– |
| Chicago Fire | Blake Gallo | Main | Guest | Guest | | | | Alberto Rosende | 2019–2024 |
| Chicago Fire | Violet Mikami | Main | | Guest | | | | Hanako Greensmith | 2020– |
| Chicago Fire | Gianna Mackey | Main | | | | | | Adriyan Rae | 2020–2021 |
| Chicago Fire | Sam Carver | Main | | Guest | | | | Jake Lockett | 2022– |
| Chicago Fire | Lizzie Novak | Main | | | | | | Jocelyn Hudon | 2024– |
| Chicago Fire | Dom Pascal | Main | Guest | Guest | | | | Dermot Mulroney | 2024– |
| Chicago P.D. | Hank Voight | Recurring | Main | Guest | Recurring | Recurring | | Jason Beghe | 2012– |
| Chicago P.D. | Antonio Dawson | Recurring | Main | | Main | Guest | | Jon Seda | 2012–2019 |
| Chicago P.D. | Erin Lindsay | Recurring | Main | Guest | Guest | Recurring | | Sophia Bush | 2013–2017 |
| Chicago P.D. | Jay Halstead | Recurring | Main | Recurring | | Guest | | Jesse Lee Soffer | 2013–2022 |
| Chicago P.D. | Adam Ruzek | Recurring | Main | Guest | | | | Patrick John Flueger | 2014– |
| Chicago P.D. | Kim Burgess | Recurring | Main | Guest | Guest | Guest | | Marina Squerciati | 2014– |
| Chicago P.D. | Alvin Olinsky | Guest | Main | Guest | Guest | | | Elias Koteas | 2014–2018, 2024 |
| Chicago P.D. | Kevin Atwater | Recurring | Main | Guest | Guest | | | LaRoyce Hawkins | 2013– |
| Chicago P.D. | Trudy Platt | Recurring | Main | Guest | Guest | | | Amy Morton | 2014– |
| Chicago P.D. | Hailey Upton | Guest | Main | Guest | | | Guest | Tracy Spiridakos | 2017–2024 |
| Chicago P.D. | Vanessa Rojas | Guest | Main | Guest | | | | Lisseth Chavez | 2019–2020 |
| Chicago P.D. | Dante Torres | | Main | | | | | Benjamin Levy Aguilar | 2022– |
| Chicago P.D. | Kiana Cook | | Main | Guest | | | | Toya Turner | 2024– |
| Chicago P.D. | Sean Roman | Recurring | Main | Guest | | Guest | | Brian Geraghty | 2014–2016, 2020 |
| Chicago P.D. | Sheldon Jin | | Main | | | | | Archie Kao | 2014 |
| Chicago Med | Will Halstead | Recurring | Recurring | Main | | | | Nick Gehlfuss | 2015–2023 |
| Chicago Med | April Sexton | Recurring | Guest | Main | | | | Yaya DaCosta | 2015–2021, 2022 |
| Chicago Med | Natalie Manning | Guest | Guest | Main | | | | Torrey DeVitto | 2015–2021, 2023 |
| Chicago Med | Sarah Reese | Guest | Guest | Main | | | | Rachel DiPillo | 2015–2018, 2024–2025 |
| Chicago Med | Connor Rhodes | Guest | Guest | Main | | | | Colin Donnell | 2015–2019 |
| Chicago Med | Ethan Choi | Recurring | Recurring | Main | | | | Brian Tee | 2015–2022 |
| Chicago Med | Sharon Goodwin | Guest | Guest | Main | | | | S. Epatha Merkerson | 2015– |
| Chicago Med | Daniel Charles | Guest | Recurring | Main | Guest | | | Oliver Platt | 2015– |
| Chicago Med | Maggie Lockwood | Guest | Guest | Main | | | | Marlyne Barrett | 2015– |
| Chicago Med | Ava Bekker | Guest | | Main | | | | Norma Kuhling | 2017–2019 |
| Chicago Med | Crockett Marcel | Guest | Guest | Main | | | | Dominic Rains | 2019–2024 |
| Chicago Med | Hannah Asher | Guest | | Main | | | | Jessy Schram | 2020, 2022– |
| Chicago Med | Dean Archer | Guest | Guest | Main | | | | Steven Weber | 2021– |
| Chicago Med | Stevie Hammer | | | Main | | | | Kristen Hager | 2021–2022 |
| Chicago Med | Dylan Scott | | Guest | Main | | | | Guy Lockard | 2021–2022 |
| Chicago Med | Mitch Ripley | Guest | Guest | Main | | | | Luke Mitchell | 2024– |
| Chicago Med | Caitlin Lenox | Guest | Guest | Main | | | | Sarah Ramos | 2024– |
| Chicago Med | John Frost | Guest | Guest | Main | | | | Darren Barnet | 2024– |
| Chicago Justice | Peter Stone | | Guest | Guest | Main | Main | | Philip Winchester | 2016–2019 |
| Chicago Justice | Antonio Dawson | Recurring | Main | | Main | Guest | | Jon Seda | 2012–2019 |
| Chicago Justice | Laura Nagel | | Guest | | Main | | | Joelle Carter | 2016–2017 |
| Chicago Justice | Anna Valdez | | Guest | | Main | | | Monica Barbaro | 2017 |
| Chicago Justice | Mark Jefferies | Guest | Guest | | Main | Guest | | Carl Weathers | 2016–2017, 2018 |
* 1 2 3 4 Jon Seda left Chicago P.D. during its fourth season for Chicago Justice and returned to the former for its fifth season after the latter's cancellation.
* ↑ Philip Winchester joined the main cast of Law & Order: Special Victims Unit in the nineteenth season following the cancellation of Chicago Justice.

## Crossovers

The following table displays all the crossover storylines involving the Chicago series.
| Crossover Between | Crossover Between | Crossover Between | Episode Title | Actors Appearing Outside Their Series | Date Broadcast | Description | Type |
| Series A | Series B | Series C | Episode Title | Actors Appearing Outside Their Series | Date Broadcast | Description | Type |
| Chicago Fire | Chicago P.D. | — | "Let Her Go" (Chicago Fire S01E23) | Appearing in Series A: Jason Beghe, Jon Seda, LaRoyce Hawkins | May 15, 2013 | Events force Lieutenant Casey to team up with the Intelligence Unit, now run by Voight, who doesn't appear to have changed his crooked ways after his stint in prison. | Backdoor Pilot |
| Law & Order: SVU | Chicago P.D. | — | "Comic Perversion" (Law & Order: SVU S15E15) "Conventions" (Chicago P.D. S01E06) | Appearing in Series A: Sophia Bush Appearing in Series B: Ice-T, Kelli Giddish, David Eigenberg | February 26, 2014 | Chicago detective Erin Lindsay asks the NYPD for help in solving a series of rapes and murders, so Tutuola and Rollins head to Chicago to help Voight and Antonio catch the culprit. | Two-Part Crossover |
| Chicago Fire | Chicago P.D. | — | "A Dark Day" (Chicago Fire S02E20) "8:30 PM" (Chicago P.D. S01E12) | Appearing in Series A: Jason Beghe, Jon Seda, Sophia Bush, Jesse Lee Soffer, Marina Squerciati, LaRoyce Hawkins Appearing in Series B: Jesse Spencer, Taylor Kinney, Eamonn Walker, Lauren German, Charlie Barnett, Joe Minoso | April 29, 2014 April 30, 2014 | A major explosion takes place at Chicago Med where Casey and Dawson are volunteering at a charity run, so Firehouse 51 and Intelligence work together to track down the culprits. | Two-Part Crossover |
| Chicago Fire | Law & Order: SVU | Chicago P.D. | "Nobody Touches Anything" (Chicago Fire S03E07) "Chicago Crossover" (Law & Order: SVU S16E07) "They'll Have to Go Through Me" (Chicago P.D. S02E07) | Appearing in Series A: Jason Beghe, Sophia Bush, Kelli Giddish Appearing in Series B: Jason Beghe, Sophia Bush, Jesse Lee Soffer Appearing in Series C: Danny Pino, Kelli Giddish, Mariska Hargitay | November 11, 2014 November 12, 2014 | When Firehouse 51 rescues the owner of a house on fire, they find him clutching a suspicious box, so the Chicago Intelligence Unit is brought in for further investigation, leading them to work with Special Victims Unit to take down a child pornography ring. | Three-Part Crossover |
| Chicago Fire | Chicago P.D. | — | "Three Bells" (Chicago Fire S03E13) "A Little Devil Complex" (Chicago P.D. S02E13) | Appearing in Series A: Marina Squerciati, Brian Geraghty, Jon Seda Appearing in Series B: Monica Raymund, Charlie Barnett, Eamonn Walker | February 3, 2015 February 4, 2015 | When more clues about Shay's death are found, Firehouse 51 works with Intelligence to apprehend the arsonist suspected of killing her. | Two-Part Crossover |
| Chicago Fire | Chicago Med | — | "I Am the Apocalypse " (Chicago Fire S03E19) | Appearing in Series A: Nick Gehlfuss, Yaya DaCosta, Oliver Platt, S. Epatha Merkerson, Jon Seda, Jesse Lee Soffer, Patrick Flueger | April 7, 2015 | The team transports victims of a chemical leak to Chicago Med, where the bad situation turns even worse due to a grenade-carrying madman who claims to have a deadly airborne disease. After the explosion everybody starts to panic and begin to flee with the doctors telling everyone to stay put and puts Chicago Med on lock down | Backdoor Pilot |
| Chicago Fire | Chicago P.D. | Law & Order: SVU | "We Called Her Jellybean" (Chicago Fire S03E21) "The Number of Rats" (Chicago P.D. S02E20) "Daydream Believer" (Law & Order: SVU S16E20) | Appearing in Series A: Mariska Hargitay, Jason Beghe, Jon Seda, Tamara Tunie Appearing in Series B: Mariska Hargitay, Danny Pino, Ice-T, Peter Scanavino, Jesse Spencer, Eamonn Walker, Nick Gehlfuss Appearing in Series C: Jason Beghe, Sophia Bush, Jesse Lee Soffer, Marina Squerciati, Brian Geraghty | April 28, 2015 April 29, 2015 | An apartment fire connected to a case of attempted rape and murder in Chicago resembles an unsolved case in New York, so Special Victims Unit and Intelligence work together to find the suspect. | Three-Part Crossover |
| Chicago Fire | Chicago Med | Chicago P.D. | "The Beating Heart" (Chicago Fire S04E10) "Malignant" (Chicago Med S01E05) "Now I'm God" (Chicago P.D. S03E10) | Appearing in Series A: Brian Tee, Nick Gehlfuss, Amy Morton, Patrick Flueger, Marina Squerciati, Colin Donnell, Yaya DaCosta Appearing in Series B: Taylor Kinney, Monica Raymund, Kara Killmer, Dora Madison, David Eigenberg, Joe Minoso, Christian Stolte, Jesse Lee Soffer, Sophia Bush Appearing in Series C: Torrey DeVitto, Oliver Platt | January 5, 2016 January 6, 2016 | Christopher Herrmann is treated for stab wounds at Chicago Med, while a comatose woman rescued from a fire is discovered to be one of four patients given unnecessary chemotherapy by a doctor who may have killed Voight's wife. | Three-Part Crossover |
| Law & Order: SVU | Chicago P.D. | — | "Nationwide Manhunt" (Law & Order: SVU S17E14) "The Song of Gregory William Yates" (Chicago P.D. S03E14) | Appearing in Series A: Jason Beghe, Sophia Bush, Jon Seda Appearing in Series B: Mariska Hargitay, Ice-T, Eamonn Walker, Brian Tee | February 10, 2016 | Chicago detectives Lindsay and Dawson come to New York to assist in the hunt for two escaped murderers, one of whom is Greg Yates, who returns to Chicago and commits a triple homicide, so SVU detectives Benson and Tutuola come to Chicago to join in the investigation. | Two-Part Crossover |
| Chicago P.D. | Chicago Justice | — | "Justice" (Chicago P.D. S03E21) | Appearing in Series A: Philip Winchester, Joelle Carter, Carl Weathers, Taylor Kinney, Joe Minoso, Steven R. McQueen, Kara Killmer, Colin Donnell, Brian Tee, Marlyne Barrett | May 11, 2016 | Assistant States Attorney Peter Stone has been assigned to help defend Burgess and conduct his own investigation of her shooting of an unarmed African American teenager who is accused of shooting her partner. | Backdoor Pilot |
| Chicago Fire | Chicago P.D. | — | "Some Make It, Some Don't" (Chicago Fire S05E09) "Don't Bury This Case" (Chicago P.D. S04E09) | Appearing in Series A: Jason Beghe, Sophia Bush, Amy Morton, Marlyne Barrett Appearing in Series B: Taylor Kinney, Jesse Spencer, Christian Stolte | January 3, 2017 | Severide finds himself slipping back into old habits as he continues to help Anna with a bone marrow procedure. He's brought into the District when his car is found to have caused a deadly crash and during the investigation, the Chicago police track down a group of carjackers who may be the key to proving Severide's innocence. | Two-Part Crossover |
| Chicago Fire | Chicago P.D. | Chicago Justice | "Deathtrap" (Chicago Fire S05E15) "Emotional Proximity" (Chicago P.D. S04E16) "Fake" (Chicago Justice S01E01) | Appearing in Series A: S. Epatha Merkerson, Oliver Platt, Marlyne Barrett, Yaya DaCosta, Brian Tee, Nick Gehlfuss, Torrey DeVitto, Jason Beghe, Sophia Bush, Marina Squerciati, Elias Koteas, Carl Weathers Appearing in Series B: Philip Winchester, Jon Seda, Taylor Kinney, Eamonn Walker, Nick Gehlfuss, Torrey DeVitto, Kara Killmer, Brian Tee Appearing in Series C: Elias Koteas, Jason Beghe, Taylor Kinney | March 1, 2017 | A warehouse fire leaves Olinsky's daughter and 38 others dead. Chicago P.D.'s Intelligence Unit does all it can to track down the arsonist behind this tragedy. In Justice, the prime suspect's attorney does everything he can to get him acquitted, while ASA Peter Stone works really hard to find the way to get justice for the victims of the attack. | Three-Part Crossover |
| Chicago Justice | Law & Order | Chicago P.D. | "Uncertainty Principle" (Chicago Justice S01E02) | Appearing in Series A: Richard Brooks, Jason Beghe, Marina Squerciati, LaRoyce Hawkins, Amy Morton | March 5, 2017 | At the request of Sgt. Hank Voight, Defense Attorney Paul Robinette travels to Chicago to defend Officer Kevin Atwater and faces off against ASA Peter Stone, the son of his former colleague Ben Stone. | Guest appearance |
| Law & Order: SVU | Chicago Justice | Law & Order | "The Undiscovered Country" (Law & Order: SVU S19E13) | Appearing in Series A: Philip Winchester, Sam Waterston | February 7, 2018 | After traveling to New York to attend the funeral for his father, Ben Stone, Chicago ASA Peter Stone accepts a job offer from District Attorney Jack McCoy to work for the DA's office. His first case is the prosecution of ADA Rafael Barba, who is accused of murdering a terminally ill infant. | Guest appearance |
| Chicago P.D. | Chicago Fire | — | "Profiles" (Chicago P.D. S05E16) "Hiding Not Seeking" (Chicago Fire S06E13) | Appearing in Series A: Jesse Spencer, Taylor Kinney, Monica Raymund, Kara Killmer, David Eigenberg, Joe Minoso, Christian Stolte, Eamonn Walker Appearing in Series B: Jason Beghe, Jon Seda, Amy Morton, Patrick John Flueger, Jesse Lee Soffer, Tracy Spiridakos, Marina Squerciati, LaRoyce Hawkins | March 7, 2018 March 8, 2018 | Intelligence and Firehouse 51 pursue a serial bomber targeting the media. | Two-Part Crossover |
| Chicago Fire | Chicago Med | Chicago P.D. | "Going to War" (Chicago Fire S07E02) "When to Let Go" (Chicago Med S04E02) "Endings" (Chicago P.D. S06E02) | Appearing in Series A: Nick Gehlfuss, Torrey DeVitto, Brian Tee, Jesse Lee Soffer, S. Epatha Merkerson Appearing in Series B: Jesse Spencer, Taylor Kinney, Kara Killmer, David Eigenberg, Yuri Sardarov, Joe Minoso, Christian Stolte, Miranda Rae Mayo, Jesse Lee Soffer Appearing in Series C: Taylor Kinney, Nick Gehlfuss, Brian Tee, Eamonn Walker, S. Epatha Merkerson, Annie Ilonzeh | October 3, 2018 | A fire consumes a 25-story apartment complex, sending the residents to Chicago Med for treatment. When Intelligence discovers the cause of the fire, the case gets personal for Jay Halstead. | Three-Part Crossover |
| Law & Order: SVU | Chicago Justice | — | "Zero Tolerance" (Law & Order: SVU S20E03) | Appearing in Series A: Carl Weathers | October 4, 2018 | After an illegal immigrant child is separated from her mother, ADA Stone seeks out the help from his former boss, Chicago State's Attorney Mark Jefferies, to reunite them. | Guest appearance |
| Chicago Fire | Chicago P.D. | — | "What I Saw" (Chicago Fire S07E15) "Good Men" (Chicago P.D. S06E15) | Appearing in Series A: Jesse Lee Soffer, Tracy Spiridakos, Jason Beghe Appearing in Series B: Jesse Spencer, Taylor Kinney, Kara Killmer, David Eigenberg, Joe Minoso, Annie Ilonzeh, Eamonn Walker | February 20, 2019 | A spate of robberies comes to light after a firehouse lockbox key goes missing. | Two-Part Crossover |
| Chicago Fire | Chicago Med | Chicago P.D. | "Infection: Part I" (Chicago Fire S08E04) "Infection: Part II" (Chicago Med S05E04) "Infection: Part III" (Chicago P.D. S07E04) | Appearing in Series A: Jason Beghe, Jesse Lee Soffer, Tracy Spiridakos, Patrick John Flueger, Marina Squerciati, LaRoyce Hawkins, Lisseth Chavez, Nick Gehlfuss, Yaya DaCosta, Torrey DeVitto, Dominic Rains, Marlyne Barrett, S. Epatha Merkerson Appearing in Series B: Jesse Spencer, Taylor Kinney, Kara Killmer, David Eigenberg, Annie Ilonzeh, Eamonn Walker, Jesse Lee Soffer, Tracy Spiridakos, Patrick John Flueger, Marina Squerciati, LaRoyce Hawkins, Lisseth Chavez, Amy Morton, Jason Beghe Appearing in Series C: Jesse Spencer, Taylor Kinney, Kara Killmer, David Eigenberg, Joe Minoso, Christian Stolte, Miranda Rae Mayo, Annie Ilonzeh, Eamonn Walker, Nick Gehlfuss, Yaya DaCosta, Torrey DeVitto, Dominic Rains, S. Epatha Merkerson | October 16, 2019 | A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago's finest first responders to work together alongside the CDC to resolve the dangerous situation. | Three-Part Crossover |
| Chicago Fire | Chicago P.D. | — | "Off the Grid" (Chicago Fire S08E15) "Burden of Truth" (Chicago P.D. S07E15) | Appearing in Series A: Jason Beghe, Marina Squerciati, Patrick John Flueger, LaRoyce Hawkins, Brian Geraghty Appearing in Series B: Taylor Kinney, Kara Killmer, Christian Stolte, Annie Ilonzeh, Eamonn Walker | February 26, 2020 | When Fire and P.D. team up to solve the case of a bad overdose, former Chicago Police Officer Sean Roman returns to Chicago to assist. | Two-Part Crossover |
| FBI | Chicago P.D. | — | "Emotional Rescue" (FBI S02E19) | Appearing in Series A: Tracy Spiridakos | March 31, 2020 | After the body of a college student is found in a drug deal gone bad, Chicago P.D. Detective Hailey Upton assists the FBI team in their investigation. | Guest Appearance |
| Chicago Fire | Chicago Med | Chicago P.D. | "In the Trenches: Part I" (Chicago Fire S13E11) "In the Trenches: Part II" (Chicago Med S10E11) "In the Trenches: Part III" (Chicago P.D. S12E11) | Appearing in Series A: Steven Weber, Jessy Schram, Luke Mitchell, Sarah Ramos, Darren Barnet, Oliver Platt, Jason Beghe, Marina Squerciati, Patrick John Flueger, Amy Morton Appearing in Series B: Taylor Kinney, David Eigenberg, Christian Stolte, Miranda Rae Mayo, Daniel Kyri, Jake Lockett, Dermot Mulroney, Jason Beghe, Marina Squerciati, Patrick John Flueger, Amy Morton, LaRoyce Hawkins, Toya Turner Appearing in Series C: Taylor Kinney, David Eigenberg, Christian Stolte, Miranda Rae Mayo, Dermot Mulroney, Steven Weber, Luke Mitchell, Sarah Ramos, Darren Barnet, S. Epatha Merkerson, Oliver Platt | January 29, 2025 | When a gas explosion rocks a high-rise, Chicago’s first responders come out in force to rescue hundreds of civilians. It’s the calamity beneath the surface, however, that sends our heroes on a race to save 40 people trapped deep underground, including two of their own. | Three-Part Crossover |