Dermot Mulroney的性格脱离了芝加哥消防局的中季, 由Rob Morgan的新主管取代。 Dermot Mulroney's character departs Chicago Fire mid-season, replaced by Rob Morgan's new chief.

Dermot Mulroney的性格是营长Dom Pascal, 将在第14集和3月4日芝加哥一号交叉之后离开。 Dermot Mulroney's character, Battalion Chief Dom Pascal, will depart after Episode 14 and a One Chicago crossover on March 4. 他的缺席是故事的一部分,可能在本季晚些时候返回。 His absence is part of the storyline, with a possible return later in the season. 罗布·摩根接替他担任大队长霍普金斯,一个有复杂背景的新角色,他在第16集首次亮相,并在四集中出现,包括季末. Rob Morgan takes his place as Battalion Chief Hopkins, a new recurring character with a complicated backstory who debuts in Episode 16 and appears in four episodes, including the season finale. 这一变化代表了Firehouse 51的领导权过渡。 The change represents a leadership transition at Firehouse 51.