Guest Stars Randy Flagler as Firefighter Harold Capp Miranda Rae Mayo as Lieutenant Stella Kidd DuShon Brown as Connie Robyn Coffin as Cindy Herrmann Marina Squerciati as Officer Kim Burgess Nick Gehlfuss as Dr. Will Halstead Holly Robinson Peete as Tamara Jones Guy Burnet as Grant Smith Armand Schultz as Alderman Colin Becks Jenny Mollen as Detective Bianca Holloway Co Starring Anthony Ferraris as Squad 3 Driver Tony Ferraris Amanda Calabrese as Annabelle Herrmann Kurt Ehrmann as Chief Joel Tiberg Jennifer Weigel as Melissa Brosh-McKenna Robin Robinson as TV Anchor Alejandro Ortiz as Mateo Anne Acker as Amy Bell Mark Pracht as David Melanie Keller as Emma Ritter Xavier Lagunas as Tomas Jennifer Jelsema as Morning Show Host Uncredited Anne Lockhart voices Dispatcher