Tom Canty is a poor English boy who bears a remarkable resemblance to Edward, Prince of Wales and son of King Henry VIII. The two boys meet and decide to play a joke on the court by dressing in each other's clothes, but the plan goes awry when they're separated and each must live the other's life.
Ernest Borgnine
John Canty

George C. Scott
The Ruffler

Harry Andrews
Hertford

Raquel Welch
Lady Edith