It might be time for Marvel fans to start rethinking their expectations for the X-Men 's MCU debut. A new rumor is shaking ...

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 ...

Hearing that the X-Men’s MCU debut is actively in the works feels like a massive relief. If Mr. Sinister is indeed the first major villain, the MCU is aiming for something bigger.

Mister Sinister is one of the X-Men’s deadliest villains and was a centerpiece of the previous Krakoa Era of X-Men stories. Sinister’s genetic library was a key part of Krakoan resurrection ...

Marvel is reportedly eyeing Javier Bardem to play Mister Sinister in the upcoming X-Men reboot. Read on to know more details!

Mister Sinister deserves his time to shine and would give the MCU X-Men movies the chance to build their own identity.

Who does Mister Sinister work for in X-Men '97 episode 7? The notorious villain just faced the X-Men once more. However, the only difference is he has a trump card hidden up his sleeve this time.

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 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.