Old Man Logan is an alternative version of Marvel Comics' popular character Wolverine. This character is an aged Wolverine set in an alternate future universe designated as Earth-807128, where supervillains overthrew the superheroes. Originally introduced as a self-contained story arc within the Wolverine ongoing series by writer Mark Millar and artist Steve McNiven, the character became very popular with fans. After the Death of Wolverine, X-23 took the mantle of Wolverine, but Old Man Logan was brought in to serve as an X-Man and featured in his own ongoing series