Wolverine (aka James Howlett, aka Logan) is the most popular and famous in Marvel Comics's X-Men series. He's a mutant that has both natural and artificial improvements to his physiology. His most notable abilities include regenerative healing and superhuman senses. The artificial part is the indestructible metal alloy, Adamantium, which was bonded to his skeleton and claws under the Weaon X program. See and learn more about Wolverine's beginnings this May when X-Men Origins: Wolverine comes out in theaters.