Dr. Camille Saroyan was introduced as a forensic pathologist on the second season premiere. She works as the head of the Forensic Division, a new division formed during the summer of 2006.
Camille has had a spotty personal life: her and Booth dated a long time ago. Also in the fourth season, Camille's former fiancée dies. Saroyan ends up moving in with his daughter, Michelle.
Hodgins: Could be the vic was drowned somewhere else and then dumped in the lake.
Cam: No drowning's not the way Booth would kill someone. (Wendell and Hodgins stare at her) Not ... that I actually suspect Booth. At all. (pauses)Quit ... staring at me.
Vincent: Notice the antemortem bone lesion in the carpal capitate, suggesting a stab wound on the hand.
Cam: Did you see the video? They were juggling machetes.