King Ralph is a 1991 American comedy film directed by David S. Ward and starring John Goodman, Peter O'Toole, and John Hurt. The film is about an American who becomes the unlikely King of the United Kingdom after an electrical accident wipes out the British royal family.
When the entire British royal family is electrocuted and killed in a freak accident outside Buckingham Palace while having a royal portrait taken, Sir Cedric Willingham leads a search for any surviving heirs to whom to pass the crown. After days of researching, his team finally locates a living heir in the form of an American named Ralph Jones. Shortly after being fired from his job as a lounge singer in Las Vegas, Ralph is informed by Cedric's assistant private secretary Duncan Phipps that his grandmother Constance had an affair with the first Duke of Warren while working as a hotel waitress when the Duke visited the United States, resulting in Ralph having royal blood. Phipps provides further proof by showing Ralph a duplicate of the ring his grandmother used to wear that the Duke had given her.