Main Characters Firefighter Joe Cruz 227 main appearances Firefighter Randy "Mouch" McHolland 226 main appearances Lieutenant Christopher Herrmann 248 main appearances Deputy District Chief Wallace Boden 248 main appearances Lieutenant Kelly Severide 241 main appearances Matthew Casey 200 main appearances Paramedic Sylvie Brett 192 main appearances Firefighter Brian "Otis" Zvonecek 137 main appearances Lieutenant Stella Kidd 153 main appearances Gabriela Dawson 138 main appearances Darren Ritter 71 main appearances Blake Gallo 67 main appearances Peter Mills 66 main appearances Paramedic Violet Mikami 54 main appearances Paramedic Leslie Shay 46 main appearances Paramedic Emily Foster 37 main appearances Jimmy Borrelli 19 main appearances Paramedic Jessica "Chili" Chilton 14 main appearances Dr. Hallie Thomas 7 main appearances Paramedic Gianna Mackey 9 main appearances
Recurring Guest Characters Donna Boden 32 guest appearances Firefighter Sam Carver 32 guest appearances District Chief Steve Walker 27 guest appearances Kevin Hadley 26 guest appearances Luke Herrmann 25 guest appearances Jimmy Borrelli 6 guest appearances Captain Tom Van Meter 25 guest appearances Officer Kim Burgess 23 guest appearances Lee Henry Herrmann 22 guest appearances Dr. Will Halstead 21 guest appearances Jeff Clarke 20 guest appearances Louie Keyes 20 guest appearances Paramedic Chief Evan Hawkins 20 guest appearances Detective Jay Halstead 18 guest appearances Sergeant Hank Voight 18 guest appearances Chloe Cruz 18 guest appearances Paramedic Jessica "Chili" Chilton 3 guest appearances Annabelle Herrmann 17 guest appearances Benny Severide 16 guest appearances Kevin Atwater 14 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥