Per our sister site Deadline, Christie will play a new squad member who is a childhood friend of Taylor Kinney’s Lt. Kelly Severide. He makes his debut in the March 10 episode.
Christie’s previous TV credits also include Girlfriends’ Guide to Divorce, Rush, October Road and True Justice.
Chi Fire was already renewed for Season 4 last week, along with The Blacklist, Chicago. P.D, Grimm and SVU.