Jesse Spencer Matthew Casey Actor Taylor Kinney Kelly Severide Actor Monica Raymund Gabriela Dawson Actor Eamonn Walker Chief Wallace Boden Actor David Eigenberg Christopher Herrmann Actor Joe Minoso Joe Cruz Actor Yuri Sardarov Brian "Otis" Zvonecek Actor Christian Stolte Randy "Mouch" McHolland Actor Kara Killmer Sylvie Brett Actor Dora Madison Jessica "Chili" Chilton Actor Steven R McQueen Jimmy Borrelli Actor Liza J. Bennett Alex Ward Guest Star Armand Schultz Alderman Colin Becks Guest Star Randy Flagler Capp Guest Star Ralph Rodriguez Freddie Clemente Guest Star Ski Carr Luis Clemente Guest Star Jesse Harper Father Guest Star Mary Cross Mother Guest Star Howie Johnson Sgt. Conroy Guest Star Stan Adams Liquor Store Clerk Guest Star Derek Haas Executive Producer Michael Brandt Executive Producer Jeffrey Nachmanoff Executive Producer Dick Wolf Executive Producer Peter Jankowski Executive Producer Danielle Gelber Executive Producer Reza Tabrizi Director Tiller Russell Writer