• Voldemort - Harry Potter series, by J. K. Rowling
• Moriarty - Sherlock Holmes series, by Sir Arthur Conan Doyle
• The One Ring - The Lord of the Rings trilogy, by J. R. R. Tolkien
• Mrs. Coulter - _His Dark Material_s trilogy, by Philip Pullman
• Dolores Umbridge - Harry Potter series, by J. K. Rowling
• Hook - Peter Pan, by J. M. Barrie
• The Nothing - The Neverending Story, by Michael Ende
• The White Witch - The Chronicles of Narnia, by C. S. Lewis
• President Snow/The Capitol (and every other government in dystopian fiction) - The Hunger Games trilogy, by Suzanne Collins
• The Unraveller Rakoth Maugrim - The Fionavar Tapestry trilogy, by Guy Gavriel Kay

top ten villains [http://thewoodlandlibrary.blogspot.com/2011/04/top-ten-tuesday-favorite-villains.html]