시즌 정규 출연진 10

1. 

   Jesse Spencer

   Matthew 'Matt' Casey

2. 

   Taylor Kinney

   Kelly Severide

3. 

   David Eigenberg

   Christopher Herrmann

4. 

   Joe Miñoso

   Joe Cruz

5. 

   Christian Stolte

   Randy 'Mouch' McHolland

6. 

   Miranda Rae Mayo

   Stella Kidd

7. 

   Kara Killmer

   Sylvie Brett

8. 

   Eamonn Walker

   Wallace Boden

9. 

   Alberto Rosende

   Blake Gallo

10. 

    Annie Ilonzeh

    Emily Foster

특별출연 8

1. 

   Monica Raymund

   Gabriela Dawson

2. 

   Daniel Kyri

   Darren Ritter

3. 

   Yuriy Sardarov

   Brian 'Otis' Zvonecek

4. Dennis Burton

   Security Guard

5. Jacob Knoll

   Dustin Caldwell

6. 

   Tim Hopper

   Captain Tom Van Meter

7. 

   Andy Allo

   Lt. Wendy Seager

8. 

   Randy Flagler

   Capp

제작진 2