Firefighter Christopher Herrmann
Firefighter Joe Cruz
Lieutenant Randy "Mouch" McHolland
Captain Kelly Severide
Deputy Commissioner Wallace Boden
Captain Matthew Casey
Lieutenant Stella Kidd
Paramedic Sylvie Brett
Firefighter Brian "Otis" Zvonecek
Firefighter/Paramedic Gabriela Dawson
Firefighter Darren Ritter
Paramedic Violet Mikami
Firefighter Blake Gallo
Firefighter/Paramedic Peter Mills
Firefighter Sam Carver
Paramedic Leslie Shay
Paramedic Lyla "Lizzy" Novak
Paramedic Emily Foster
Battalion Chief Dom Pascal
Paramedic Jimmy Borrelli
Firefighter Sal Vasquez
Paramedic Jessica "Chili" Chilton
Dr. Hallie Thomas
Paramedic Gianna Mackey
Firefighter Candidate Marcus Burke