Camilla "Cami" Severide, is the sister of Kelly Severide and half-sister to Katie Nolan. Camilla, is sweet and lovely, she's protective of her friends and family and doesn't take crap from anyone. She used to be a Firefighter on Truck 81, and a member of Squad 3 before joining the Intelligence unit which Hank Voight recruited you. Camilla, becomes close friends with everyone in the unit, and goes through hell and back with all the up's and downs of some cases.