Guest Stars Randy Flagler as Firefighter Harold Capp Miranda Rae Mayo as Lieutenant Stella Kidd Jon Seda as Detective Antonio Dawson Nick Gehlfuss as Dr. Will Halstead LaRoyce Hawkins as Kevin Atwater Lauren Stamile as Susan Weller Brandon Jay McLaren as Danny Booker Jenny Mollen as Detective Bianca Holloway Maxwell Jenkins as J.J. Holloway Tyler Dean Flores as Victor Vazquez Co Starring Anthony Ferraris as Squad 3 Driver Tony Ferraris Steve Bayorgeon as Super Rafael Lopez as Tony (Shotcaller) Daniel Armenta as Julio (Shotcaller) Zach Bundy as Johnny Hardt Mark D. Hines as Manager Rachel Sullivan as Brie Eddie Diaz as Older Guy Blanca Camacho as Patricia Vasquez Uncredited Anne Lockhart voices Dispatcher