Get ready for a shake-up at Firehouse 51! Dermot Mulroney is set to join the cast of "Chicago Fire" as the new fire chief, Dom Pascal, in the show's upcoming 13th season. This casting change comes after Eamonn Walker's departure from the role of Battalion Chief Wallace Boden, who exited as a series regular at the end of season 12.
While specifics about Pascal's character remain under wraps, sources close to the show have shared some intriguing details. Chief Pascal is described as a cheerful individual who began his career with the Chicago Fire Department before spending the past decade working in Miami, Florida.
His leadership style is expected to differ from that of his predecessor, Boden, offering a fresh dynamic to the team at Firehouse 51.
Dermot Mulroney, known for his roles in various films and TV shows, will be bringing his talents to the popular firefighting drama. His arrival marks a significant shift in the series, particularly after the transition period following the end of Boden’s tenure.

The announcement might come as a surprise to some fans, especially since there were expectations for veteran firefighter Christopher Herrmann (played by David Eigenberg) to step into the chief role after Boden’s promotion.
Eigenberg recently expressed uncertainty about Herrmann’s readiness for such a leap. In an interview with TV Insider, Eigenberg suggested that Herrmann’s journey to chief might need further development.
“The character can’t make a shift to a chief unless we were deep into TV falsehoods,” he explained. “I’m not going to let him do that. He has to become a captain, and then you got to go through a whole thing. I think that the character might be able to make the transition. I don’t know. Who knows? They may put me in chief and then fire me as a chief. We’ll see.”

As fans eagerly await the new season, the addition of Dermot Mulroney promises to bring a new level of excitement and energy to "Chicago Fire.
" The series, known for its intense firefighting drama and compelling character arcs, will return for its 13th season on September 25. With Mulroney stepping into the chief role, viewers can anticipate fresh challenges and dynamics at Firehouse 51.