McLaglen co-starred with Lon Chaney in the 1925 silent version of The Unholy Three.
McLaglen's final acting role was in an episode of Rawhide entitled Incident of the Shambling Man which aired in 1959. The episode was directed by his son, Andrew.
McLaglen co-starred with Mae West in the 1936 comedy Klondike Annie.
McLaglen became a naturalized American citizen in January of 1933.
McLaglen once worked as a carnival boxer in addition to his regular boxing career. If anyone could stay in the ring with him for one round without being knocked down they won a box of cigars.
McLaglen had two children from his first marriage--a son named Andrew and a daughter named Sheila.
Ex-boxer McLaglen choreographed much of his famous fight scene with John Wayne in The Quiet Man.
McLaglen was nominated for an Academy Award for Best Supporting Actor in 1952 for The Quiet Man. It was the first time a Best Actor winner had been nominated for a subsequent Supporting award.
McLaglen served in the Irish Fusiliers during World War I. He was stationed in the Middle Eastern theatre of the war.
McLaglen once fought heavyweight champion Jack Johnson in a six round exhibition bout.
McLaglen's father was a Protestant clergyman who moved the family to South Africa at an early age.