Joseph Crehan (July 15, 1883 – April 15, 1966) was an American film actor. He appeared in more than 300 films between 1916 and 1965, and notably played Ulysses S. Grant nine times between 1939 and 1958, most memorably in Union Pacific and They Died with Their Boots On. Born in Baltimore, Maryland. he was the son of Mr. and Mrs. Mathew Crehan. He attended Calvert Hall College and Kent College of Law but left the latter because of his stronger interest in drama. Early in his career, Crehan worked in light comedy. He was in his late 30s when he began doing character roles.