Guest Stars Christian Stolte as Firefighter Randy "Mouch" McHolland Joe Miñoso as Firefighter Joe Cruz Yuri Sardarov as Firefighter Brian "Otis" Zvonecek Mo Gallini as Firefighter Jose Vargas Linda Powell as Ingrid Mills Alexandra Metz as Elise Mills Jon Seda as Vice Detective Antonio Dawson Jason Beghe as Detective Hank Voight Meghann Fahy as Nicki Rutkowski Co Starring Randy Flagler as Firefighter Harold Capp William Smillie as Kevin Hadley Karen Aldridge as Dr. Kendra Perrington Eliza Shin as Dr. Brenner Adam Tanguay as Officer Sobek John Gawlik as Officer Banks Guy Van Swearingen as Al Rutkowski Parker Mack as Mike Duffy Philip Earl Johnson as Greg Duffy J.J. Phillips as Nippy Jeff Garretson as Hix Joe Sinopoli as Justin Voight Nick Vidal as Haashole Uncredited Anne Lockhart voices Dispatcher