- as Lieutenant Matthew „Matt“ Casey
- as Clarice
- as Lieutenant Kelly Severide
- as Joe Cruz
- as Peter Mills
- as Otis
- as Gabriela „Gabby“ Dawson
- as Mouch
- as Leslie Elizabeth Shay
- as Arthur
- as Chief Wallace Boden
- as Eric Whaley
- as Lieutenant Christopher Herrmann
- as Rick Savrinn
- as Hallie Thomas
- as Detective Antonio Dawson
- as Nancy Casey
- as Stephanides
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