Dermot Mulroney joins ‘Chicago Fire’ for Season 13

Dermot Mulroney at the "The Righteous Gemstones" Premiere Screening at the Paramount Theater on July 25^ 2019 in Los Angeles^ CA

Dermot Mulroney has joined the cast of NBC’s Chicago Fire for Season 13.  Deadline reported that Mulroney will fill the void left when Eamonn Walker, who played Chief Wallace Boden for all 12 previous seasons, exited the