The season 14 finale of Chicago Fire will feature a surprise return from a fan-favorite character following their shocking hiatus. The first look at the May 13 finale of the hit NBC series showed Dermot Mulroney reprising the role of Pascal. Viewers last saw Pascal in March when his position was revoked because he previously disobeyed a federal agent's order to stand down while collecting evidence at a house fire. Pascal was arrested, but despite the federal charges against him being dropped, his position was still in jeopardy.