Jesse Spencer
Matthew 'Matt' Casey (20 eps)
Taylor Kinney
Kelly Severide (20 eps)
Kara Killmer
Sylvie Brett (20 eps)
David Eigenberg
Christopher Herrmann (20 eps)
Alberto Rosende
Blake Gallo (20 eps)
Joe Minoso
Joe Cruz (20 eps)
Daniel Kyri
Darren Ritter (20 eps)
Miranda Rae Mayo
Stella Kidd (20 eps)
Christian Stolte
Randy 'Mouch' McHolland (20 eps)
Annie Ilonzeh
Emily Foster (20 eps)
Eamonn Walker
Wallace Boden (20 eps)
Randy Flagler
Harold Capp (20 eps)
Tim Hopper
Captain Tom Van Meter (6 eps)
Andy Allo
Lt. Wendy Seager (6 eps)
Amy Morton
Trudy Platt (5 eps)
Hanako Greensmith
Violet Mikami (4 eps)
Marina Squerciati
Kim Burgess (4 eps)
Nick Gehlfuss
Will Halstead (4 eps)
Patrick John Flueger
Adam Ruzek (4 eps)
Kristen Gutoskie
Chloe Allen (4 eps)
Robyn Coffin
Cindy Herrmann (4 eps)
Mo Sketch
Captain Leone (3 eps)
Yuriy Sardarov
Brian 'Otis' Zvonecek (2 eps)
Teddy Sears
Kyle Sheffield (2 eps)
Austin Peck
Chad Collins (2 eps)
Torrey DeVitto
Natalie Manning (2 eps)
Jesse Lee Soffer
Jay Halstead (2 eps)
Jason Beghe
Hank Voight (2 eps)
Eloise Mumford
Hope Jacquinot (2 eps)
Kario Marcel
Ryan Pace (2 eps)
Melissa Ponzio
Donna Robbins (2 eps)
LaRoyce Hawkins
Kevin Atwater (2 eps)
Katelynn Shennett
Kylie Estevez (2 eps)
Steve Chikerotis
Chief Walker (2 eps)
Monica Raymund
Gabriela Dawson (1 eps)
Brian Geraghty
Sean Roman (1 eps)
Lorenzo Rush Jr.
Marvin (1 eps)
Geno Walker
Boswell (1 eps)
Lisseth Chavez
Vanessa Rojas (1 eps)
S. Epatha Merkerson
Sharon Goodwin (1 eps)
Marlyne Barrett
Maggie Lockwood (1 eps)
Samantha Massell
Olivia (1 eps)
Ariane Rinehart
Lily (1 eps)
Brian Howe
Nick Porter (1 eps)
Gary Cole
Chief Grissom (1 eps)
Dennis Burton
Security Guard (1 eps)
Evan Mulrooney
Dwayne (1 eps)
Roderick Peeples
Chief Bruce Amshen (1 eps)
Jonna Walsh
Jessa (1 eps)
Darren Alford
Isaac Davis (1 eps)
Ricardo Gutierrez
George Pineda (1 eps)
Aaron Serotsky
Dr. David Seldon (1 eps)
Randall Newsome
Chief Ray Morgan (1 eps)
Eleni Pappageorge
Justina Ortiz (1 eps)
Brenda Barrie
Kristen (1 eps)
Mark Doherty
Chief Benton (1 eps)
Robert T. Bogue
Captain Greg Delaney (1 eps)
Yaya DaCosta
April Sexton (1 eps)
Heidi Grace Engerman
Nicole (1 eps)
Curtis Edward Jackson
Eric Woodruff (1 eps)
Dominic Rains
Crockett Marcel (1 eps)
Jacob Knoll
Dustin Caldwell (1 eps)
Eric Bays
Dale (1 eps)
Tracy Spiridakos
Hailey Upton (1 eps)
Karen Rodriguez
Ivania (1 eps)
Meghan Murphy
Younger Firefighter (1 eps)