Robert Vaughn began in films as boyish and rather callow youths, graduated to considerable success in the 1960s in intelligent, sophisticated roles, especially on TV, and later played a wide range of authoritative character parts. An intelligent and sensitive performer whose charisma is bound up with his pensive quality, Vaughn entered films in 1957. One of his earliest films was wildly out of character given his later image: the title role in the poor Roger Corman quickie, "Teenage Caveman" (1958). Vaughn's talent for expressing nervous tension came to the fore in one of his finest film