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 Miranda Rae Mayo Stella Kidd Actor Will Kiley New trainee Guest Star Treat Williams Benny Guest Star David Von Kampen Lee Henry Guest Star Rachel DiPillo Sarah Reese Guest Star Amy Morton Trudy Platt Guest Star Charlotte Sullivan Anna Turner Guest Star Jennifer Lafleur Mrs. Sullivan Guest Star Robyn Coffin Cindy Herrmann Guest Star Randy Flagler Capp Guest Star Elias Koteas Alvin Olinsky Guest Star Peter Goldsmith Kent Stevens Guest Star Bella Ortiz Chelsea Stevens Guest Star Anthony Ferraris Tony Guest Star Sam Porretta Chief Hatcher Guest Star Abigail Mason Trish Guest Star Fred Zimmerman Mr. Leppert 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