Kang Is A Red Herring: 10 Villains Who May Be The Next TRUE Big Bad Of The MCU

10. Mephisto

With the universe, microverse, and multiverse in play, it’s only a matter of time until the astral plane is explored. The MCU could take a few creative liberties and let this dimension be the home of Mephisto. The astral plane, and Mephisto's arrival, can be a consequence of the Soul Stone's destruction.

Mephisto is not Satan or the devil, per se, and personifying evil in the Biblical sense may be something that the MCU steers clear of. He can simply be painted as a ruler of demons in his own realm, finally free to enslave as many souls as possible.

Mephisto has ties to numerous Marvel characters including Doctor Doom, The Beyonder, Doctor Doom, and Ghost Rider. His first appearance was actually in a Silver Surfer title, with Mephisto determined to claim the soul of the herald of Galactus.

Though not the most popular of villains, Mephisto would make for an interesting big bad and offer the MCU another opportunity to make another relatively obscure character a household name.