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 Treat Williams Benny Severide Guest Star Melissa Ponzio Donna Robbins Guest Star Brian White Dallas Patterson Guest Star Fredric Lehne Chief Ray Riddle Guest Star Tom Amandes Detective Ryan Wheeler Guest Star Jason Beghe Hank Voight Guest Star Randy Flagler Capp Guest Star Robyn Coffin Cindy Herrmann Guest Star Ralph Rodriguez Freddie Clemente Guest Star Anthony Ferraris Tony Guest Star DuShon Monique Brown Connie Guest Star Madrid St. Angelo Store Manager Guest Star Chase Penny Vespa Rider Guest Star Matthew W. Allen Banquet Firefighter 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 Dan Lerner Director Tiller Russell Writer Liz Alper Writer Ally Seibert Writer