The team behind Ironheart discusses how the series pulled that major MCU "big bad," and the decision Riri makes in Episode 6.

Fans have been wondering if/when/how the devilish character would ever arrive onscreen since the premiere of WandaVision four and a half years ago, and Ironheart creator Chinaka Hodge tells Entertainment Weekly that the decision to include that long-awaited moment in this series was not hers "alone."

Marvel's "Ironheart" finally introduces Mephisto (Sacha Baron Cohen) to the MCU. But after years of delays, does it work?