Trained as a dancer, Mary Treen spent the late '20s-early '30s as a leading lady in vaudeville, light opera, and musical comedy. After a handful of Vitaphone short subjects, Treen was signed to a Warner Bros. contract in 1934. She spent the bulk of her film career playing wisecracking clerks and telephone operators, or essaying "heroine's best friend" roles. Her movie assignment was the Tillie the Toiler-type role especially written for her in Paramount's I Love a Soldier (1944), though her many fans would probably nominate her performance as Cousin Tilly in the ubiquitous It's a Wonderful Life (1946). On television, Treen was a regular on the 1954 sitcom Willy, and later played Hilda the maid on The Joey Bishop Show (1962-1965). Mary Treen's final appearance before the cameras was in the 1983 made-for-TV movie Wait Till Your Mother Gets Home! ~ Hal Erickson, Rovi