There, Edgar joined the Pasadena Playhouse as an actor. Studio scouts spotted him performing at the playhouse and signed him into a seven-year deal in Hollywood. That same year, he appeared in his first film at age 36, and he left dentistry for good. Meanwhile, his wife, Dr. Millie Buchanan, DDS, took over the dental practice while also supporting her husband's new career as his talent manager.

Edgar was a member of Theta Chi fraternity and a Freemason.