Disney's Ironheart Episode Schedule Hides Mephisto Tease, Fans Believe, Including When Borat Actor Sacha Baron Cohen Will Make His Top-Secret Marvel Debut

Disney has hidden a sneaky hint to the real villain of upcoming Black Panther spin-off show Ironheart in the show's newly-confirmed episode schedule, fans believe.

The Easter egg lines up with previous reports that fan-favourite Marvel character Mephisto is finally set to make his MCU debut within the series.

The episode schedule for Ironheart, shared on Marvel Studios' social media accounts, confirms the its six-episode run will arrive in two batches, with the first three episodes available June 24. But it's the second set of episodes, available July 1, which fans are most interested in.

Here, the series' penultimate episode, Karma's A Glitch, includes the letter M written in red ink — something fans say suggests that this is when Mephisto himself will appear.

Mephisto is a red demonic character referred to in Marvel comics as The Devil, and he has a long history of making villainous appearances opposite characters such as Spider-Man, Doctor Strange and Scarlet Witch.

The character has long been expected by fans to eventually make an MCU appearance, with many believing he would debut in Wandavision, or last year's Agatha All Along. But multiple reports by Deadline have pegged Ironheart as the character's place of debut — and stated that Borat star Sacha Baron Cohen is playing the role, in a mix of live-action and CGI.

Riri’s notebook = unlocked.