Brother of writer R. Wright Campbell First wife, Judith Campbell Exner, professed to be a mistress of President John F. Kennedy. Brother of actor Robert Campbell Was the first actor ever to sing with Elvis Presley in a motion picture (Love Me Tender (1956)). After he retired he was for a time the administrator of the Motion Picture Country Home in Woodland Hills, CA, a retirement home for elderly members of the motion picture industry. Ex-brother-in-law of Susan Morrow and Gary Morton. Studied acting with Uta Hagen, Danny Mann and Herbert Berghoff. Attended Fagin's School for Drama.