On the Chicago Fire episode “I Will Be Walking,” while Casey (Jesse Spencer) gets involved with a gang-retribution incident involving a high-school student, and Brett (Kara Killmer) and Jimmy (Steven R. McQueen) are called to help a woman, Severide (Taylor Kinney) watches Detective Holloway’s 9-year-old son at the firehouse while Holloway goes undercover.
Detective Holloway is portrayed by Jenny Mollen. She’s known for her roles on Girls (Courtney), Wilfred (Kim), Hawaii Five-0 (Dakota Hayes), Suits (Gabby Stone), and Crash (Tess Nolan), among others. Mollen is also recognized for her roles in the films Crazy, Stupid, Love. (Lisa) and Return of the Living Dead: Rave to the Grave (Jenny). Mollen will appear next in the comedy film Amateur Night with her real-life husband Jason Biggs. Chicago Fire airs Tuesdays at 10pm on NBC.