Overview

• Sacha Baron Cohen makes his MCU acting debut as Mephisto in the July 1 Season 1 finale of Ironheart, fulfilling years of fan speculation dating back to WandaVision.
• The choice of Mephisto emerged from a collaborative writers’ room process that received executive approval from Marvel Studios leaders like Kevin Feige.
• Angela Barnes and Chinaka Hodge praised Cohen’s swift commitment and hands-on collaboration during the character’s rapid development.
• The finale positions Riri Williams at a moral crossroads where her tech-driven genius collides with supernatural forces, setting up new narrative stakes.
• Hodge confirmed her intent to continue Ironheart beyond Season 1, expressing hopes for a second, third and even a fourth season.