Cooper died from an undisclosed illness Tuesday at a Los Angeles hospital, agent Ronnie Leif said.
A handsome kid with tousled blond hair and a winning smile, Cooper had a memorable bit in the 1929 musical "Sunny Side Up" and appeared in eight of the popular "Our Gang" comedies, including "Pups Is Pups" and "Teacher's Pet." Those credits led to a test that won him the title role of "Skippy."
His other credits included "Sooky" and "The Love Machine."
