Overview

• Mephisto made his MCU debut in the Disney+ series Ironheart’s finale as Marvel introduced its long-rumored devilish antagonist.
• Sacha Baron Cohen brought the comic villain to life with a blend of charisma and menace.
• Marvel Studios president Kevin Feige affirmed plans to expand Mephisto’s role in future MCU storylines.
• Industry speculation suggests the character could next appear in Spider-Man: Brand New Day (2026) or Avengers: Doomsday (2026).
• Mephisto’s origins date back to his 1968 debut in Silver Surfer #3 and a formative presence in major comic arcs including Thanos’s saga.