For the English cricketer, see Jack Mercer (cricketer). For the American baseball player, see Jack Mercer (baseball).Jack Mercer (January 13, 1910 – December 4, 1984) was an American animator, storyman and voice actor. He is best known as the voice of cartoon characters Popeye the Sailor and Felix the Cat. The son of vaudeville and Broadway performers, he also performed on the vaudeville and legitimate stage.