Main Characters Firefighter Randy "Mouch" McHolland 226 main appearances Firefighter Joe Cruz 225 main appearances Deputy District Chief Wallace Boden 248 main appearances Lieutenant Christopher Herrmann 247 main appearances Lieutenant Kelly Severide 239 main appearances Matthew Casey 200 main appearances Paramedic Sylvie Brett 192 main appearances Firefighter Brian "Otis" Zvonecek 137 main appearances Lieutenant Stella Kidd 152 main appearances Gabriela Dawson 138 main appearances Darren Ritter 70 main appearances Blake Gallo 67 main appearances Peter Mills 66 main appearances Paramedic Violet Mikami 52 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 Captain Reinhart 1 guest appearances Mechanic 1 guest appearances Ken 1 guest appearances Lois 1 guest appearances Dr. Isley 1 guest appearances Suburban Woman 1 guest appearances Stoner Dude 1 guest appearances Foreman 1 guest appearances Bricklayer 1 guest appearances Worker 1 guest appearances Henry Sidwell 1 guest appearances Chuck Rutledge 1 guest appearances Trevor Kincaid 1 guest appearances Holly 1 guest appearances Hannah 1 guest appearances Evan 1 guest appearances Cammy 1 guest appearances Paramedic Chief Colson 1 guest appearances Erica 1 guest appearances John 1 guest appearances ⇤ « 95 96 97 98 99 100 101 102 103 104 » ⇥