The One Chicago universe — made up of Chicago P.D., Chicago Fire, and Chicago Med — has delivered heart-stopping drama, emotional storylines, and unforgettable characters for over a decade. But behind the scenes, the franchise has also faced real-life heartbreak. Several cast members, both stars and fan-favorites, have tragically passed away since their time on the show — leaving fans stunned and mourning their loss.
One of the most heartbreaking losses was DuShon Monique Brown, who played Connie, the no-nonsense assistant on Chicago Fire. Her sudden death in 2018 at the age of 49 shocked the cast and viewers alike. DuShon brought warmth, strength, and humor to the firehouse, and her passing left a noticeable hole in the show’s heart. Chicago Fire later paid tribute to her with an emotional on-screen goodbye that had fans in tears.
Another loss felt deeply by the One Chicago family was the death of Treat Williams, who had a guest role in the universe but was beloved across television for decades. His presence, even in brief appearances, left an impact that fans and co-stars continue to remember fondly.
Crew members, stunt performers, and extras who helped bring the streets of Chicago to life have also been quietly honored by cast and creators after their untimely deaths. The franchise is known for treating its behind-the-scenes team like family — and their losses are deeply felt.
As One Chicago continues to evolve, the legacy of these late stars lives on through the characters they helped shape and the fans who still remember their performances.
