This article was originally published on bamsmackpow.com as Alien's Xenomorph just killed a legendary Marvel character.

Meet the sinister and powerful Nathaniel Essex, aka Mr. Sinister, a Victorian geneticist with a dangerous obsession for evolution and mutation. With the help of the ancient mutant Apocalypse, he poses ...

The MCU’s X-Men reboot is in the works, and reports suggest Oscar-winner Javier Bardem is in talks to play Mr. Sinister. Could he be the next major villain in Marvel’s mutant saga?

It's been leaked that Mister Sinister could be coming to Marvel's Wolverine, but there's good reason to believe he won't be the only villain there.

The Mister Sinister the X-Men fought for years wasn’t the original Nathaniel Essex, but his clone. Actually, one of four clones made in the late 19th century of the original Nathaniel Essex.

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.

The X-Men’s Mister Sinister begins his global takeover, defeating the X-Men, Avengers, Thanos, and Asgard in the first issue alone. That and other news from this week’s best new comics, from ...

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 ...

The new X-Men event story 'Sins of Sinister' in which the world is remade in the image of classic X-Men villain Mister Sinister (a la 1995's Age of Apocalypse) will kick off in January 25's Sins ...

Immortal X-Men is about to give way to Immoral X-Men as part of the 'Sins of Sinister' event in which Mister Sinister will remake the entire world in his own image, with three titles including ...