Detective Severide

Katherine Lynn Severide is one of the best Detectives to come out of New York and she was taken in by sergeant Olivia Benson.
When she was sixteen she often got into trouble along with her brother Kelly, she doesn't really like to follow orders or male authority Figures all that much. When Benny wasn't there for her or Kelly she went to the military and once she finished her tours she got a job in New York working under Olivia Benson for the special victims unit, then when she traveled to Chicago to see how her brother was doing , to know that Kelly was in contact with Benny , Kat was angry at Kelly but she eventually got over it. Once she got back to New York she found out that the team had a missing and possible rape victim and had to call Erin Lindsay