Brian Donlevy (February 9, 1901 – April 5, 1972) was an Irish-born American film actor, noted for playing tough guys from the 1930s to the 1960s. He usually appeared in supporting roles. Among his best-known films are Beau Geste (1939) and The Great McGinty (1940). For his role as Sergeant Markoff in Beau Geste he was nominated for the Academy Award for Best Supporting Actor.
His obituary in The Times newspaper in the United Kingdom stated that "any consideration of the American 'film noir' of the 1940s would be incomplete without him".
Donlevy was born Waldo Brian Donlevy in Portadown, County Armagh, Ireland (now Northern Ireland) to a whiskey distiller and his wife in 1901. When he was 10 months old his parents moved to Racine, Wisconsin. When he was 9 years old, his family moved to Cleveland, Ohio. He lied about his age (he was actually 14) in 1916 so he could join the army. When Mexican rebels under Villa's command raided Columbus, NM, and killed 18 American soldiers and civilians, Gen. John J. Pershing sent American troops to invade Mexico in pursuit of Pancho Villa. Donlevy served with that expedition.