Wolverine is a mutant, born with the ability to rapidly recover from any injury or ailment. He possesses long retractable claws that protrude from the backs of his hands. His skeleton is laced with a fictional metal known as adamantium, which makes it indestructible. Wolverine is a member of the X-Men.
Marvel editor-in-chief Roy Thomas asked writer Len Wein to devise a character specifically named Wolverine, who is Canadian and of small stature and with a wolverine's fierce temper. John Romita, Sr. designed the first Wolverine costume, and believes he introduced the retractible claws, saying, "When I make a design, I want it to be practical and functional. I thought, 'If a man has claws like that, how does he scratch his nose or tie his shoelaces?'" Wolverine first appeared in the final "teaser" panel of The Incredible Hulk #180 (cover-dated Oct.1974) written by Wein and penciled by Herb Trimpe. The character then appeared in a number of advertisements in various Marvel Comics publications before making his first major appearance in The Incredible Hulk #181 (Nov. 1974) again by the Wein-Trimpe team. In 2009, Trimpe said he "distinctly remembers" Romita's sketch and that, "The way I see it, [Romita and writer Len Wein] sewed the monster together and I shocked it to life!... It was just one of those secondary or tertiary characters, actually, that we were using in that particular book with no particular notion of it going anywhere. We did characters in The [Incredible] Hulk all the time that were in [particular] issues and that was the end of them." Though often credited as co-creator, Trimpe adamantly denies having had any role in Wolverine's creation.
The character's introduction was ambiguous, revealing little beyond his being a superhuman agent of the Canadian government. In these appearances, he does not retract his claws, although Wein stated they had always been envisioned as retractable. He appears briefly in the finale to this story in The Incredible Hulk #182.
Wolverine's next appearance was in 1975's Giant-Size X-Men #1, written by Wein and penciled by Dave Cockrum, in which Wolverine is recruited for a new squad. Gil Kane illustrated the cover artwork but incorrectly drew Wolverine's mask with larger headpieces. Dave Cockrum liked Kane's accidental alteration (believing it to be similar to Batman's mask) and incorporated it into his own artwork for the actual story. Cockrum was also the first artist to draw Wolverine without his mask, and the distinctive hairstyle became a trademark of the character.
THE WOLVERINE Official Trailer (2013) Hugh Jackman