Guest Stars Samuel Hunt as Craig "Mouse" Gurwitch Nick Gehlfuss as Dr. Will Halstead Barbara Eve Harris as Commander Emma Crowley David Eigenberg as Lieutenant Christopher Herrmann Oliver Platt as Dr. Daniel Charles Madison McLaughlin as Michelle Sovana Joe Miñoso as Firefighter Joe Cruz Randy Flagler as Firefighter Harold Capp Steven Williams as Bishop Leif Gantvoort as Ryan Bergstrom Co Starring Celeste Cooper as Medical Examiner Cooper Danny Martinez as Patrolman Garcia Abby Lee as Callie Gibson Erik Hellman as Dr. Alec Willhite Vincent Shuster as Andrew Gibson Travis A. Knight as Patrolman Bobby Price James Knight as Clay Carlson Lisa Fraser as Jainie Saunders Joseph Lopez as Joe the Shark Greg Berman as John Radigan Miriam Moss as Teen Girl Michael Monroe Goodman as Med Security Guard