Dr. Peter Benton is a fictional character on the television series ER for its first eight seasons. He was played by Eriq La Salle. Benton was often portrayed as arrogant and irritable, but he is nevertheless an exceptionally talented surgeon who is passionate about medicine. It is also revealed that he and fellow emergency room physician Mark Greene had attended medical school together. Benton's last appearance as a series regular was in the Season 8 episode "I'll Be Home For Christmas". La Salle's removal from the opening credits as an ongoing regular was in the 11th episode of season 8; however, Benton appeared in the credits of the 15th episode of season 8, in which he is shown talking to Elizabeth Corday, and the 21st episode, in which he appears at a funeral. He also appears later in season 15.