A round-faced, slightly fleshy balding former child actor, Clint Howard has been alternating between supporting and small roles in virtually every film directed by his brother Ron to small roles in other "A" list Hollywood productions. Like his older brother, he followed his actor father Rance into show business. At age three, he was cast in several episodes of "The Andy Griffith Show," as Leon, the little boy in love with peanut butter. Two years later and already seasoned by some film work, Howard was a regular on the short-lived family series "The Baileys of Balboa". In 1967, he won the