Both JK Rowling and Daniel Radcliffe have made it onto the Forbes 'Celebrity 100' list. JK Rowling places in at number 9, while Daniel Radcliffe is at number 64.

It was wizardry that transformed J.K. Rowling from a destitute single mother on welfare into a best-selling billionaire. Her adventures of teenage magician Harry Potter and his classmates at Hogwarts became a children's literary sensation in 1998 with the U.S. publication of Harry Potter and the Sorcerer's Stone. It and the six subsequent books have now sold 375 million copies worldwide. The final one, Harry Potter and the Deathly Hallows, has sold 44 million since it was published last July, including 15 million in the first 24 hours.

Last summer the British-born boy wizard, 18, signed a jaw-dropping contract worth an estimated $50 million to continue his leading role in the last two installments of the Harry Potter series. (The final story, Harry Potter and the Deathly Hollows, has since split into two movies, meaning even more cash for him.) He also played the title role in the BBC's TV movie My Boy Jack, a World War I story about Rudyard Kipling's ill-fated son, and he'll be baring all on Broadway in Equus.