Gerald Patrick "Jerry" Mathers Born June 2, 1948 (age 64) in Sioux City, Iowa... is an American television, film, and stage actor. Mathers is best known for his role in the television sitcom series Leave It to Beaver (1957–1963), in which he played Theodore "Beaver" Cleaver, the younger son of archetypal suburban couple June and Ward Cleaver (played by Barbara Billingsley and Hugh Beaumont), and the brother of Wally Cleaver (played by Tony Dow).