A fter years of speculation, teases, and countless fan theories, the MCU has finally pulled the trigger on one of its most elusive and long-awaited characters: Mephisto. The demonic villain made his official debut in ‘ Ironheart ’ Episode 6.

Four years after WandaVision made "Mephisto" the hottest search term Google had ever seen, Ironheart on Disney+ finally introduced the demonic villain Mephisto. He's Marvel's analogue to Satan, played Sacha Baron Cohen,

For the past four ears, we've had many wild theories as to when and where we'd see the demon lord Mephisto in the MCU.