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 Actor Randy Flagler Harold Capp Guest Star Anthony Ferraris Tony Ferraris Guest Star Joe Daru Terry Guest Star Hero Hunter Isaiah Guest Star Jeanine Mason Lucy Guest Star Robyn Coffin Cindy Guest Star Ashley Bryant Catherine Hargrave Guest Star Tim Hopper Tom Van Meter Guest Star Gonzalo Menendez Ramon "Ray" Vasquez Guest Star Leroy Williams III Engine Lieutenant 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, Writer Michael Gilvary Executive Producer Arthur W. Forney Executive Producer Reza Tabrizi Director Matt Earl Beesley Director Lisa Demaine Director Sheelin Choksey Director Will Eichler Director Alec Wells Writer Matt Whitney Writer Victor Teran Writer Hussain Pirani Writer Davon Briggs Writer Natalie Bartlett Writer