George "Mac" McHale is a major antagonist and anti-hero in the 2008 action-adventure film Indiana Jones and the Kingdom of the Crystal Skull, the fourth installment of the Indiana Jones film series.
He is a World War II veteran and an old friend of Indiana Jones. By 1957, however, Mac hast lost too much in gambling so he resorts to turn Indy over to Irina Spalko and her men during their quest to find the Crystal Skull of Akator so the Soviet Union can win the Cold War.