Dr. Temperance "Bones" Brennan, Ph.D. (born Joy Keenan) is a fictional character portrayed by Emily Deschanel in the American Fox television series Bones. An anthropologist, forensic anthropologist, and kinesiologist, she is described in the series as a leading authority in the field of forensic anthropology. Brennan first appeared on television, along with other series characters, in the "Pilot" episode of Bones on September 13, 2005. She is the main protagonist of the series along with FBI Special Agent Seeley Booth (David Boreanaz).