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 Marina Squerciati Kim Burgess Guest Star Brian White Dallas Patterson Guest Star Fredric Lehne Chief Ray Riddle Guest Star Randy Flagler Capp Guest Star Nick Gehlfuss Will Halstead Guest Star Gordon Clapp Chaplain Orlovsky Guest Star Yaya DaCosta April Sexton Guest Star Anthony Ferraris Tony Guest Star DuShon Monique Brown Connie 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 Joe Chappelle Director Michael A. O'Shea Writer