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One Chicago

Developed by Derek Haas and Michael Brandt, One Chicago is a multi-series television franchise that combines various public service/government organizations in Chicago, Illinois. Each series shares a timeline and universe, with multiple characters crossing over occasionally. The One Chicago universe began with Chicago Fire in 2012, with P.D., Med, and Justice comprising the remainder of one of NBC's most successful primetime franchises.

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One Chicago Franchise Poster
One Chicago
6/10
Created by
Derek Haas, Michael Brandt
First TV Show
Chicago Fire
First Episode Air Date
October 10, 2012
Cast
Jesse Spencer, Taylor Kinney, Monica Raymund, Jason Beghe, Jon Seda, Sophia Bush, Jesse Lee Soffer, Nick Gehlfuss, Yaya DaCosta, Torrey DeVitto, Rachel DiPillo, Philip Winchester, Joelle Carter, Monica Barbaro, Carl Weathers, Yuri Sardarov

Character(s)
Matthew Casey, Kelly Severide, Gabriela Dawson, Brian Zvonecek, Henry Voight, Antonio Dawson, Erin Lindsay, Jay Halstead, Will Halstead, April Sexton, Peter Stone, Laura Nagel, Anna Valdez, Mark Jefferies

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Jason Beghe as Voight in Chicago PD season 13
Voight Going Back To His Bloody Basics In Chicago PD Is Exactly What Season 14 Needs
Chicago P.D.

Chicago PD's season 13 finale delivered a violent version of Hank Voight that doesn't appear often anymore, and that's good for season 14.

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Dean Archer in Chicago Med season 11 finale
Archer's Dramatic Chicago Med Confession Secretly Reveals His Best Future With Hannah
Chicago Med

Chicago Med's season 11 finale didn't end tragically for Archer and Hannah as feared, but with a confession that bodes well for the future.

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Christian Stolte and David Eigenberg in Chicago Fire
5 Characters Chicago Fire Could Actually Kill Off After Season 14's Finale Cliffhanger
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Chicago Fire ended season 14 on an even more explosive cliffhanger than usual, and there are five heroes especially in danger of losing their lives.

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Jason Beghe as Voight in Chicago PD
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NBC guaranteed Chicago PD for season 14 before the season 13 finale, so there will be more of the Windy City's primetime procedural action to come.

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Jessy Schram as Hannah Asher looking worried in Chicago Med
Chicago Med Season 12: Release Date, Story, & Everything We Know
Chicago Med

NBC is bringing Chicago Back for season 12 following the season 11 finale, guaranteeing another round for One Chicago's medical drama.

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Taylor Kinney in Chicago Fire season 14
Chicago Fire Season 15: Release Date, Story, & Everything We Know
Chicago Fire

NBC guaranteed that more Chicago Fire is on the way after the season 14 finale, and early details for season 15 are already looking good.

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Jessy Schram as Hannah Asher in Chicago Med season 11, episode 5
I'm Officially Worried About Hannah After Chicago Med Season 11's Ominous Warning
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Chicago Med is teasing trouble for Hannah and her pregnancy ahead of the season 11 finale, based on potential foreshadowing tied to her mother.

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Severide in Chicago Fire
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An unexpected character return in Chicago Fire season 14 clears the path for Taylor Kinney's Kelly Severide to finally make his Firehouse 51 exit.

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Charles in Chicago Med and April 2026 Calendar
Why There's No One Chicago Tonight (April 15) & When New Episodes Of Fire, PD, & Med Release

The finest law enforcers and first responders in the Windy City are taking a break, as NBC disrupts its regular scheduled programming for One Chicago.

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Mouch, Severide, Cruz, Boden, Casey, and Otis in Chicago Fire
Chicago Fire Fulfills A 14-Year Promise With Firehouse 51's Evolution
Chicago Fire

After 14 long years, NBC finally pays off an important storytelling promise that it made when Wolf Entertainment debuted Chicago Fire in 2012.

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Halstead and Upton in Chicago PD
Are Halstead & Upton Back Together After The 2026 One Chicago Crossover? Jay & Hailey’s Future Explained
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The 2026 One Chicago crossover reunite Jay Halstead and Hailey Upton, but at the end of the TV special, the pair's future still leaves uncertainties.

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Kidd and Severide in 2026 One Chicago Crossover
2026 One Chicago Crossover Review: Deaths, Secrets, & Reunions Help NBC Deliver The Best Network TV Event In Years

A year after NBC resurrected the tradition, One Chicago nearly perfects the art of network TV crossover with its ambitious 2026 special event.

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Severide in Chicago Fire
Why Chicago Fire Is Not Airing On Its Regular Timeslot Tonight (March 4) & When Season 14, Episode 13 Releases
Chicago Fire

The One Chicago franchise is due for a comeback after a short hiatus, but Chicago Fire fans need to take note of a scheduling change for Firehouse 51.

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Stella Kidd on Chicago Fire season 14
NBC Squashes Chicago Fire Season 14’s Biggest Criticism With Just One Line
Chicago Fire

With just one short line, NBC effectively addresses the biggest criticism that has been plaguing Chicago Fire throughout its season 14 run.

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Hailey Upton on Chicago PD and February 2026 Calendar
Why There's No One Chicago Tonight (Feb. 11) & When New Episodes Of Fire, PD, & Med Release

All three One Chicago shows are going dark tonight, February 11, 2026, as NBC disrupts Fire, PD, and Med's scheduled Wednesday night programming.

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Upton and Halstead on Chicago PD
Halstead & Upton Are Officially Back In The 2026 One Chicago Crossover Trailer

NBC has released the first trailer for the 2026 One Chicago crossover, confirming the return of Intelligence's Jay Halstead and Hailey Upton.

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Taylor Kinney as Kelly Severide talks into his radio outside.
After 14 Years, This Highly-Rated Procedural That Launched A Franchise Could Still Be Better
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The One Chicago franchise has dominated TV for years, but the show that started it all still has some improving to do even after 14 seasons on air.

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Jake Lockett as Sam Carver in Chicago Fire.
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Jake Lockett returns in Chicago Fire season 14, episode 12, but while it's always great to see Sam Carver, his fate just becomes more confusing.

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Severide and Pascal standing together in the Chicago Fire season 13 finale
Chicago Fire Season 14 Loses A Main Firehouse 51 Member (But With A Caveat)
Chicago Fire

A brand new update reveals that Firehouse 51 is about to lose an important member in Chicago Fire season 14, although there's a caveat to their exit.

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Pascal, Voight, and Platt in the One Chicago crossover
One Chicago 2026's Crossover Changes Its Winning Formula For The First Time Ever

New details about the 2026 One Chicago crossover confirms that NBC is changing its winning formula for the special for the first time in its history.

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