Robert StackRobert Langford Modini Stack (January 13, 1919 – May 14, 2003) was a multilingual American actor and television host. In addition to acting in more than 40 films, he also appeared on the television series The Untouchables and later served as the host of Unsolved Mysteries. Born in Los Angeles, CaliFilmographyHercules (1998)Beavis and Butt-Head Do America (1996)Joe Versus the Volcano (1990)Caddyshack II (1988)The Transformers: The Movie (1986)Uncommon Valor (1983)Airplane! (1980)The Name of the Game (1968)The Caretakers (1963)The Last Voyage (1960)The Untouchables (1959)John Paul Jones (1959)The Tarnished Angels (1957)Written on the Wind (1956)Great Day in the Morning (1956)House of Bamboo (1955)Good Morning, Miss Dove (1955)The High and the Mighty (1954)A Date with Judy (1948)Fighter Squadron (1948)To Be or Not to Be (1942)The Mortal Storm (1940)