Mister Sinister has been hinted at for years, and would be the perfect bad guy for an 'X-Force' movie. By Richard Newby [This story contains spoilers for Fox’s Deadpool 2.] First appearing in ...

The mysterious Mister Sinister has been among the X-Men's most prominent foes for decades, and will soon become the "Big Bad" of X-Men '97.

Mister Sinister is apparently responsible for the fall of Krakoa, and Exodus punishes Sinister by literally devouring him. Before he’s eaten, Sinister gloats about doing away with the timeline.

In Sins Of Sinister #1, we see he's been playing an even longer game than previously presumed. Previously in Immortal X-Men #9, we saw Mister Sinister kill Hope Summers with Unus bullets.

Previous issues of Aliens vs Avengers confirmed that Mister Sinister had devised a means of immunity from the Xenomorphs, having willingly allowed himself and his clones to be implanted with ...

So Mister Sinister has the world to himself. With the possible exception of Storm. And he's here to save humanity from the monsters by turning it into a ...

Mister Sinister has orchestrated mass murders of mutants Remember back in the first section when I wrote about the Mutant Massacre storyline in X-Men comics?

And, in that commentary, Singer said the Mister Sinister teaser at the end of the film was to prep audiences for Wolverine 3.

A writer for the X-Men '97 animated show on Disney+ has revealed just the first season's main villain will be Mister Sinister.