As much as it pains me to say Micheal Myers should have retired 'yonks' ago, he certainley should have not done Halloween : Resurrection.
Hannibal Lecter should also retire particuarly after Red Dragon.
Freddy Kruger also should call in a night.
Candyman, Pinhead and the Dinn (or however you pronounce/spell it - the baddy from the Wishmaster series) should have also called it quits.