Frank Merrill (born Otto Adolph Stephan Poll;[1] March 21, 1893 – February 12, 1966) was an American national title-winning gymnast (with over 58 titles to his credit), police officer, stuntman, and actor, most famous for being the fifth actor to portray Tarzan on film.
With the coming of sound films, it was decided that Merrill's voice was unsuitable for the "talkies," and he was not asked back in the role. This suited Merrill fine, as he had so enjoyed meeting youngsters via his tenure as Tarzan that he devoted the rest of his life to working with children in the Los Angeles city administration, the Los Angeles Parks Commission, as a recreation director and as a volunteer gymnastics instructor with the YMCA.