Guest Stars Randy Flagler as Firefighter Harold Capp Robyn Coffin as Cindy Herrmann Jake Lockett as Firefighter Sam Carver Nick Gehlfuss as Dr. Will Halstead Carlos S. Sanchez as Javier Alejandro Cruz Tracy Spiridakos as Detective Hailey Upton Chris McKenna as Keith Bamford Gary Kraus as Chief Girardi Nardeep Khurmi as Dr. Arthur Bishop Co Starring Anthony Ferraris as Squad 3 Driver Tony Ferraris Lucas VonKampen as Luke Herrmann David VonKampen as Lee Henry Herrmann Amanda Calabrese as Annabelle Herrmann John William Adams III as Kenny James Herrmann Ajax Dontavius as Mitchell Mo Allen as Marilyn Bryan Kelly as J.D. Milica Govich as Lori Richard Baiker as Reggie Nicholas Bailey as Andrew Jeremy Anderson as Volunteer Bashany Garcia as Office Assistant Presley Rose Jones as Vera Solange Olivier as Teenager