Chicago Fire Cast Embraces New Member Dermot Mulroney

As of October 1st, 2025, the cast of the hit TV series Chicago Fire continues to be a close-knit group, both on and off the screen. In a recent interview, actor Dermot Mulroney, who joined the show in season 13, spoke about the warm welcome he received from his co-stars. "They, as a group, as a community, literally as a family, welcomed me with wide open arms," Mulroney said.

The familial bond extends beyond just the actors. Christian Stolte, who plays the character of Randall "Mouch" McHolland, has had both of his daughters appear on the show, with his eldest even portraying his on-screen daughter. This blending of real-life and on-screen relationships is a testament to the tight-knit nature of the Chicago Fire cast.

Aside from Stolte, other cast members like Mulroney and David Eigenberg are also balancing their roles as fathers when they're not busy fighting fires on the series. The show's ability to foster a sense of community and family, both in front of and behind the camera, has undoubtedly contributed to its enduring success.