According to rumors, the new antihero would be Mister Sinister. First Full Appearance The Uncanny X-Men #221 (1987) Created by Chris Claremont Alter Ego Nathaniel Essex However, it is still too ...

2: X-MEN #221 – DIRECT | MARVEL | 1987 Like the #4 spot, Mr. Sinister is a top mover this week. He made his comeback in the X-Men ’97 series, which was epic! It was, in part, the origin ...