Among the plays in which he appeared were Faust (1908), The Count of Monte Cristo (1908), The Barrier (1910), The Squaw Man (1910), A Fool There Was (1911), An Aztec Romance (1912), The Argyle Case (1912), Steve (1912), The Right of Way (1913), The Revolt (1914), The Strange Woman (1913-1914), Our Children (1915), The Eternal Magdalene (1915), Marie-Odile (1915), Seremonda (1917), Keep It To Yourself (1919), The Broken Wing (1920), and Howdy Folks (1920).
He went into films at an unknown date. In an early film appearance, he played in Thanhouser’s Thelma (released June 21, 1910), which indicates that he must have been among the first players at the New Rochelle studio. Although he spent most of his time on the stage, he appeared playing supporting roles in numerous Thanhouser films released from 1910 through 1917. An article in Reel Life, June 26, 1915, curiously described him as “one of the several talented actors recently recruited by Edwin Thanhouser from the legitimate....” In 1918 and 1919 he was with Betzwood Film in Oh, Johnny! and Sandy Burke of the U-Bar-U. He later went elsewhere to act on the stage and in movies through the late 1930s. Alphonse Ethier died in Hollywood, California on January 4, 1943.