‘One Chicago’ crossover brings back two beloved stars but a favorite ‘Chicago PD’ character is missing

A key Intelligence officer is missing from the ‘One Chicago’ crossover, leaving fans bracing for an emotional reunion later on.
'Chicago PD' still featuring cast members including Patrick John Flueger (Cover Image Source: Instagram | @nbcchicagopd)
'Chicago PD' still featuring cast members including Patrick John Flueger (Cover Image Source: Instagram | @nbcchicagopd)

Just when you think everyone’s suiting up for the big night, one badge is missing. Fans had been crossing their fingers, hoping Adam Ruzek would stride back into the bullpen in time for the 2026 ‘One Chicago’ crossover. The annual three-show event is basically appointment television for this universe. Except this time, it looks like one pair of hands won’t be there. Patrick John Flueger is not expected to appear in the upcoming crossover, meaning Ruzek will sit this one out. For those who’ve been keeping track, Flueger stepped away from ‘Chicago P.D.’ earlier in Season 13. 

Patrick John Flueger in Chicago P.D. (/Matt Dinerstein/NBC)
A still of Patrick John Flueger from 'Chicago P.D.' ( Image Source: NBC |  Photo by Matt Dinerstein)

Back in October 2025, only a few weeks after the new season kicked off, news broke that he was taking a sudden leave of absence due to personal matters. Details were scarce. Actually, that’s putting it lightly. There were almost none. Episodes rolled on, but Ruzek? Nowhere to be seen. It wasn’t until the winter premiere that the show finally offered an in-story reason. Kim Burgess (Marina Squerciati) shared that Ruzek had rushed off to deal with an emergency involving his father, whose health has been fragile. That line filled in the blank.

Around the same time, reports surfaced that Flueger had returned to set and resumed filming in mid-December. That sparked hope among fans. If he was back behind the scenes, surely his on-screen return couldn’t be far off, right? Well, not yet. NBC recently released a batch of promotional images for the massive ‘One Chicago’ crossover event airing March 4, and fans immediately started scanning each photo like detectives themselves. Familiar faces everywhere, but no Ruzek. Not a single frame includes him. And then there’s that group photo. The one that hits you in the chest a little. 

Jay Halstead (Jesse Lee Soffer), Dr. Caitlin Lenox (Sarah Ramos), and Detective Hailey Upton (Tracy Spiridakos) appear in the 2026 'One Chicago' crossover (Image Source: NBC | Photo by George Burns Jr)
Jay Halstead (Jesse Lee Soffer), Dr. Caitlin Lenox (Sarah Ramos), and Detective Hailey Upton (Tracy Spiridakos) appear in the 2026 'One Chicago' crossover (Image Source: NBC | Photo by George Burns Jr)

The image features the active Season 13 cast standing together, joined by returning favorites Jesse Lee Soffer and Tracy Spiridakos. Seeing those two back alongside the current team feels like a reunion you didn’t know you needed. Meanwhile, the ‘One Chicago’ crossover airs Wednesday, March 4, on NBC, and it’s expected to throw all three departments into the same crisis. It will once again unite the heroes of ‘Chicago Med’, ‘Chicago Fire’, and ‘Chicago P.D.’ for a high-stakes event that spills across all three hours of primetime.

Kelly Severide (Taylor Kinney), Detective Hailey Upton (Tracy Spiridakos), and Dominic Pascal (Dermot Mulroney) appear in the 2026 'One Chicago' crossover (Image Source: NBC | Photo by Peter Gordon)
Kelly Severide (Taylor Kinney), Detective Hailey Upton (Tracy Spiridakos), and Dominic Pascal (Dermot Mulroney) appear in the 2026 'One Chicago' crossover (Image Source: NBC | Photo by Peter Gordon)

These episodes are usually packed with tension, big rescues, interdepartmental teamwork, and the kind of cliffhangers that make you shout at your TV. And yet, one of Intelligence’s longtime members won’t be in formation. At the same time, there’s a silver lining. Flueger is reportedly back at work, which means Ruzek’s return isn’t a matter of if, but when. There’s even a decent chance he could pop back up shortly after the crossover wraps. 

GET THE BIGGEST ENTERTAINMENT STORIES
STRAIGHT TO YOUR INBOX.

MORE STORIES

Hannah Simone and Steve Lemme share their thoughts on the possibility of ‘Super Troopers 4’.
11 hours ago
Lala initially plans to put up Drew, Barrett, and Kamu, but later changes course after some secrets come to light.
14 hours ago
‘Big Brother Unlocked’ reveals the winner of BB Time Capsule, and for the first time, it is a newbie.
15 hours ago
Another Reagan from 'Blue Bloods' to join Mark Wahlberg's Danny in 'Boston Blue'.
19 hours ago
The new casting update comes as 'Heated Rivalry' Season 2 begins filming in Toronto.
1 day ago
Flossie’s conversations with Jukebox and Raq set off decisions that reshape Kanan’s life and connect the series to ‘Power: Origins.’
1 day ago
‘Stuart Fails to Save the Universe’ episode 3 sees two familiar faces, but their alternate-universe roles lead to a deadly confrontation.
1 day ago
Apple TV+ will screen 'Widow's Bay' in AMC theaters, and here's why this event makes things historic for the streamer.
1 day ago
Episode 3 puts Stuart's life at risk as a magical universe brings shocking twists and familiar faces, with a major role for Bert.
1 day ago
Jake T Austin starred as Max Russo in the original series ‘Wizards of Waverly Place’ alongside Selena Gomez and David Henrie
1 day ago