- as Sylvie Brett
- as Lieutenant Matthew „Matt“ Casey
- as Lieutenant Kelly Severide
- as Christopher Herrmann
- as Gabriela „Gabby“ Dawson
- as Brian Zvonecek
- as Chief Wallace Boden
- as Joe Cruz
- as Randall McHolland
- as Stella Kidd
- as Capp
- as Dennis Mack
- as Captain Tipton
- as Chief Anderson
- as Tom Colletti
- as Tony
- as Chout
- as Wilcox
- as Grumpy Medic
- as Frederick
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