<Li> David Eigenberg as Firefighter Christopher Hermann - Truck 81 </Li> <Li> Teri Reeves as Doctor Hallie Thomas (Main, episodes 1 - 7; guest, episodes 20 - 22) </Li> <Ul> <Li> Yuri Sardarov as Firefighter Brian "Otis" Zvonecek - Truck 81 </Li> <Li> Joe Minoso as Firefighter / Chauffeur Joe Cruz - Truck 81 </Li> <Li> Christian Stolte as Firefighter Randy "Mouch" McHolland - Truck 81 </Li> <Li> Jon Seda as Detective Antonio Dawson </Li> <Li> Robyn Coffin as Cindy Hermann </Li> <Li> Jason Beghe as Detective Hank Voight </Li> <Li> Mo Gallini as Firefighter Jose Vargas - Truck 81 / Squad 3 </Li> <Li> William Smillie as Firefighter Kevin Hadley - Squad 3 </Li> <Li> Randy Flagler as Firefighter Harold Capp - Squad 3 </Li> <Li> Anthony Ferraris as Firefighter Tony Ferraris - Squad 3 </Li> <Li> Chaon Cross as Heather Darden </Li> <Li> Jeff Lima as Leon Cruz </Li> <Li> Linda Powell as Ingrid Mills </Li> <Li> Alexandra Metz as Elise Mills </Li> <Li> Shiri Appleby as Clarice Carthage </Li> <Li> Treat Williams as Benny Severide </Li> <Li> Nicole Forester as Christie Casey Jordan </Li> <Li> Kathleen Quinlan as Nancy Casey </Li> <Li> Cody Sullivan as Ernie </Li> </Ul> <Li> Yuri Sardarov as Firefighter Brian "Otis" Zvonecek - Truck 81 </Li>

What episode of chicago fire does hallie die