Guest Stars Robyn Coffin as Cindy Herrmann Amy Morton as Desk Sergeant Trudy Platt Jeff Hephner as Jeff Clarke Jason Beghe as Sergeant Hank Voight Treat Williams as Benny Severide Sophia Bush as Detective Erin Lindsay Daisy Betts as Firefighter Rebecca Jones Co Starring Randy Flagler as Firefighter Harold Capp DuShon Brown as Connie Peter Defaria as Officer Tackett Jacqueline Williams as Officer Becerra Gene Weygandt as Deputy District Chief Lionel Jones Mark Montgomery as Ramsey Bill Bannon as HVAC Man Beatriz Jamaica as Woman Enrique Guzman as Thug #2 Geno Walker as Damon Josh Carrizales as Thug #1 Mary Beth Burns as Civilian Administrator Uncredited Anne Lockhart voices Dispatcher