A few things here. You need to allow for "Professor X, not just "Prof. X", Juggernaut is not a mutant. He received his power from the Gem of Cyttorak. Lockheed is an alien dragon, again not a mutant. Betsy Braddock and Psylocke are the same person as is Beast and Dark Beast. And you are missing quite a few names such as Black Tom Cassidy, Daken, Jimmy Hudson, Fantomex, Synch, Multiple Man, Ink, Honey Badger / Scout, Romulus, Warlock, Frenzy, Legion, X-Man just to name a few