Taylor Kinney: Kelly Severide.
Jesse Spencer: Matt Casey.
Lauren German: Leslie Shay.
Monica Raymond: Gabriella Dawson.
Eamon Walker: Chief Wallace Boden.
Charlie Barnett: Peter Mills.
Yuri Sardarov: Otis.
Christian Stolte: Mouch.
Joe Minoso: Joe Cruz.
Jason Beghe: Detective Voight.
