Wolverine, comic-book character whose gruff, violent disposition set the standard for later antiestablishment comic heroes. The character was created for Marvel Comics by writer Len Wein and artist John Romita, Sr. Wolverine—who possesses razor-sharp claws, the ability to rapidly heal virtually any injury, and a skeleton reinforced with an indestructible metal—made his first full appearance in The Incredible Hulk no. 181 (1974).