Dermot Mulroney Dom Pascal Actor Taylor Kinney Kelly Severide Actor David Eigenberg Christopher Herrmann Actor Joe Minoso Joe Cruz Actor Christian Stolte Randy "Mouch" McHolland Actor Kara Killmer Sylvie Brett Actor Miranda Rae Mayo Stella Kidd Actor Hanako Greensmith Violet Mikami Actor Jocelyn Hudon Lyla Novak, Chief Hopkins Actor, Guest Star Randy Flagler Harold Capp Guest Star Anthony Ferraris Tony Ferraris Guest Star Jeanine Mason Lucy Zambetti Guest Star Jamal Akakpo Jamie Holt Guest Star Leroy Williams III Ballard Guest Star Ashley Bryant Captain Catherine Hargrave Guest Star Brian Boland Captain Frank Silva Guest Star Shawn Roundtree Jr. Caleb Guest Star Ameya Patankar ND Medic Guest Star Joe Forbrich Brady Guest Star Dustin Whitehead Mickey Guest Star Michaela Shapiro Taryn Guest Star Ike Grace Apata Zoe Guest Star Brandon Larracuente Actor Derek Haas Executive Producer Michael Brandt Executive Producer Dick Wolf Executive Producer Peter Jankowski Executive Producer Todd Arnow Executive Producer Andrea Newman Executive Producer Michael Gilvary Executive Producer Arthur W. Forney Executive Producer William Eichler Director Matt Whitney Writer Reza Tabrizi Director Matt Earl Beesley Director