by Kim Raver. Kim appeared in the first five seasons, as well as the first episode of season 6, and a cameo in the series finale. Personality She did not have much stability in her life as a child and has found as an adult, she still doesn't have any. Kim is divorced from Jimmy Doherty, and they have a son together, but never got over him and continually finds herself drawn back to him. Background Kim was one of two children and grew up with her single mother. Her mother married several times, but also continually flew around the country in search of her husband so Kim and her sister Melanie could grow up with a father. She joined FDNY as a paramedic and was partnered with Bobby Caffey, who would become her closest friend. During this time, she became romantically involved with firefighter Jimmy Doherty, with whom she got pregnant and married. Kim caught Jimmy cheating on her with her sister, so the two soon got divorced and she stopped speaking to her sister. Kim took custody of their son, Joey, although Jimmy remained very much a part of his son's life. Bobby and Kim had a very close relationship, which got awkward when Bobby revealed that he was in love with her. Kim admitted she had feelings for him, but didn't want to act on them because he was her best friend. The two slept together when Bobby's brother ran away, and Kim had to tell Bobby the next day it was a mistake, even though Bobby believed they were finally together. Kim would continually drift back to Jimmy, who constantly admitted to still having feelings for Kim, much to Bobby's dismay. In season 2, Bobby was fatally shot, and Kim took it incredibly rough. She attempted suicide and became depressed. She finally returned to work in season 3 and was partnered with part-time paramedic, part-time firefighter Alex Taylor. Shortly after she returned to work, Jimmy attempted to gain sole custody of Joey due to her depression. He was temporarily successful, but Kim would eventually regain joint custody. In season 4, Kim became romantically involved with writer Aaron Noble. Unbeknownst to her, he was heavily involved in the drug community while working undercover for his new book, and was extremely valuable to the police, due to the information he had. During this time, she had unprotected sex