Van Johnson
From Tardis Wiki, the free Doctor Who reference
Van Johnson was an American film star during the 20th century.
In the 1950s, he starred in a film entitled Brigadoon with Gene Kelly, which told the story of two American tourists who stumble upon a mysterious Scottish village which appears for only one day every 100 years. It was one of Lizzie Corrigan's favourite films. However, Nyssa had never heard of it. (BFA: The Eternal Summer)