Special Guest Stars Jon Seda as Detective Antonio Dawson Marina Squerciati as Officer Kim Burgess Jesse Lee Soffer as Detective Jay Halstead Jason Beghe as Sergeant Hank Voight Patrick John Flueger as Officer Adam Ruzek Tracy Spiridakos as Detective Hailey Upton Guest Stars Randy Flagler as Firefighter Harold Capp Daniel Di Tomasso as Hazmat Lieutenant Zach Torbett Co Starring Anthony Ferraris as Squad 3 Driver Tony Ferraris Erin Breen as Lt. Alexa Hubble Jason Bradley as Larry Shepard Todd A. Horman as George Lehr Allison Latta as Neighbour Michael Sherwin as Allen Tullis Mat Chapman as Edmund Casey Hayes as Tom Sharriese Hamilton as Receptionist Leroy S. Williams as CTA Officer Miguel Gonzalez as Security Guard Uncredited Anne Lockhart voices Dispatcher