Unexpected Chicago Fire season 12 exit for Rome Flynn's Gibson character after only six episodes, leaving viewers surprised. Gibson was brought in to replace Blake Gallo, showed potential in Firehouse 51 but abruptly left due to personal issues, hinting at an involuntary departure. Chicago Fire faces another cast member exit, leaving Firehouse 51 undermanned and the potential for a new replacement unclear, adding to the revolving roster.

One Chicago loses another cast member, and they break their silence about their unexpected Chicago Fire season 12 exit. Ensemble procedural shows on network TV are used to having a revolving roster of actors, but Dick Wolf's One Chicago has particularly been at the end of many departures in the last couple of years, with Chicago Fire losing Sylvie Brett after her marriage to Matt Casey. Not long after that, Firehouse 51 once again bids goodbye to another member, although this time, their exit is more intriguing.