Main Characters Firefighter Randy "Mouch" McHolland 226 main appearances Firefighter Joe Cruz 226 main appearances Lieutenant Christopher Herrmann 248 main appearances Deputy District Chief Wallace Boden 248 main appearances Lieutenant Kelly Severide 240 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 53 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 Nurse Anna Turner 10 guest appearances Christie Jordan 9 guest appearances Zoja 9 guest appearances Katie Nolan 9 guest appearances Sean Roman 9 guest appearances Captain Dallas Patterson 9 guest appearances Firefighter Mason Locke 9 guest appearances Lieutenant Jason Pelham 9 guest appearances Javier Alejandro Cruz 9 guest appearances Emma Jacobs 9 guest appearances Firefighter Jose Vargas 8 guest appearances Paramedic Allen Chout 8 guest appearances Officer Tackett 8 guest appearances Dr. Daniel Charles 8 guest appearances Nurse Doris 8 guest appearances Police Officer 8 guest appearances Lt. Alexa Hubble 8 guest appearances Tina Cantrell 8 guest appearances Melissa Brosh-McKenna 8 guest appearances Hope Jacquinot 8 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥