Guest Stars Christian Stolte as Firefighter Randy "Mouch" McHolland Joe Miñoso as Firefighter Joe Cruz Yuri Sardarov as Firefighter Brian "Otis" Zvonecek Jason Beghe as Detective Hank Voight Jon Seda as Vice Detective Antonio Dawson Cody Sullivan as Ernie Co Starring Randy Flagler as Firefighter Harold Capp William Smillie as Kevin Hadley Sam Porretta as Paramedic Chief Hatcher Roosevelt Booker as Curtis Emma Gordon as Madeline Rebekah Ward as Madeline's Mother Patrick Mulvey as Officer Bell Brett Elam as Reade Dan Flannery as Callahan Denise Hughes as CTA Driver Derin Adesida as Woman Elizabeth Ledo as Officer Madden Lindsey Whiting as Waitress Patrick Andrews as Zito Uncredited Anne Lockhart voices Dispatcher