NBC’s One Chicago crossover events are some of the most highly anticipated nights in television, bringing together

characters from Chicago Fire, Chicago PD, and Chicago Med. These episodes typically deliver high-stakes drama,

emotional moments, and thrilling action. However, the 2025 crossover event has left fans shocked, as eight major

characters will be missing. From unexpected exits to behind-the-scenes reasons, let’s break down who’s absent this year and why.

One of the most notable omissions is Kelly Severide from Chicago Fire, played by Taylor Kinney. After his absence in 2023 due to personal reasons, Severide returned in 2024. However, sources indicate that he won’t participate in the 2025 crossover due to an ongoing undercover assignment. Severide’s absence poses significant implications for Firehouse 51, as Chief Boden struggles to fill the leadership gap, Stella Kidd faces emotional turmoil in balancing work and their marriage, and a new temporary leader may take charge of Squad 3. Fans are left wondering when Severide will make a full-time return.

Kim Burgess, portrayed by Marina Squerciati in Chicago PD, is another central character missing from the crossover. Reports suggest that she is taking a leave of absence due to an internal investigation related to a previous case. Her absence significantly impacts the Intelligence Unit, with long-time partner Adam Ruzek struggling without her support and new tensions arising as Burgess’ situation puts scrutiny on Voight’s leadership. The unit may need to rely on a temporary replacement during this crisis, and fans remain hopeful for Burgess’ eventual return.

Dr. Will Halstead, played by Nick Gehlfuss on Chicago Med, also won’t be part of the crossover. After making a dramatic exit in 2023 to seek a fresh start outside Chicago, producers have confirmed he won’t return for 2025. This absence affects the dynamics at Chicago Med, particularly with his brother Jay Halstead (formerly of Chicago PD) also being absent. Dr. Marcel and Dr. Archer are expected to step up as leading figures in the ER, potentially paving the way for new doctors to take on greater responsibilities.

The absence of Hank Voight, the backbone of Chicago PD’s Intelligence Unit played by Jason Beghe, is perhaps the most shocking. Rumors suggest that his questionable tactics have come under federal scrutiny, leading to a suspension or temporary removal. This leaves Deputy Superintendent Samantha Miller to step in as the temporary leader, while other detectives may need to shoulder more responsibility. Voight’s absence raises questions about the unit’s future and whether they will adhere to the rules or begin to bend them.

Additionally, Sylvie Brett from Chicago Fire, played by Kara Killmer, is missing as she made the life-changing decision to leave Firehouse 51 to start a family with Casey in Oregon. This departure creates a significant gap in EMS leadership and could lead to new paramedics stepping up, possibly causing tension among the team. While Brett’s story concluded happily, fans still feel her absence deeply.

Dr. Ethan Choi, portrayed by Brian Tee in Chicago Med, has also exited for personal reasons, opting to focus on family and teaching instead of the politics of hospital life. His absence means Dr. Archer will face increased pressure in the ER, and newer doctors, especially Dr. Hannah Asher, will need to take on more important roles. While Ethan Choi might not be part of this crossover, many fans hold out hope for future guest appearances.

Jay Halstead, played by Jesse Lee Soffer in Chicago PD, is another character missing from the crossover. While he expressed interest in directing episodes following his departure, there have been no confirmations regarding a return for 2025. His absence continues to affect the Intelligence Unit, as Upton struggles without his support, and Chicago’s larger law enforcement network feels the impact of not having one of its strongest detectives.

Lastly, Joe Cruz from Chicago Fire, portrayed by Joe Minoso, is absent due to a personal crisis that has taken him out of Chicago temporarily. This situation forces Squad 3 to adjust without one of its most experienced members, raising concerns about Cruz’s potential permanent departure. As he prioritizes his family life, fans remain hopeful that this absence will be short-lived, and that he will return soon.

Overall, the missing characters present both challenges and opportunities for the remaining casts of the One Chicago universe, leaving fans eager to see how the storylines unfold without these key players.