Dermot Mulroney Bids Farewell to Chicago Fire Ahead of Season 15
Dermot Mulroney is leaving Chicago Fire after two seasons; his Chief Pascal will be written off in Season 15, which premieres Oct. 7 on NBC. Mulroney shared at a horror convention that he loved the cast and fans, and described the departure as bittersweet but better to leave than stay as the story wraps two demanding seasons.