How Mephisto Can Return In The MCU After 'Ironheart' Debut

How Mephisto Can Return In The MCU After ‘Ironheart’ Debut

DRRA July 2, 2025

Table of Contents

Marvel Comics Mephisto. Photo: Marvel.com.

Preview:

Sacha Baron Cohen makes his Marvel Cinematic Universe debut as Mephisto in ‘Ironheart’.
Mephisto makes a deal with Riri Williams to bring back her friend Natalie, which is sure to have serious consequences.
Mephisto will likely be a big part of the MCU moving forward.

SPOILER ALERT: Spoilers for ‘Ironheart’ below.

Ever since ‘WandaVision‘, Marvel fans have been speculating when and where Mephisto will show up in the Marvel Cinematic Universe, and now the time has finally come. Sacha Baron Cohen portrays the demon in ‘Ironheart‘, making his debut in the season one finale. While the Riri Williams (Dominique Thorne) led series may not continue with a season two, Mephisto is likely not going anywhere, and is sure to have a major impact on the future of the MCU.

“Every dream has a cost.”

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There is a reason fans have been begging for Mephisto to show up. He is known for making deals and mucking things up. While he looks like the devil, he is not Lucifer, but he certainly allows others to think he is. In Marvel Comics he has ties to many characters that have already been introduced, most notably Scarlet Witch, Thor, and Doctor Strange, as well as others that are coming soon including Doctor Doom and Franklin Richards.

What Mephisto’s Introduction Means For The MCU

Marvel Comics Mephisto. Photo: Marvel.com.

Mephisto is powerful, extra-dimensional demon. As showcased in ‘Ironheart’ he is a master manipulator who almost always gets his way. His deal with Parker Robbins (Anthony Ramos) corrupted him, leaving him with scars all over his body and an obsession with the cloak he was gifted. When Mephisto decided to be done with him, he simply moved onto his next victim, Riri Williams.

While the demon behind Parker’s hood was initially suspected to be Dormamu, the finale reveals that this is not the truth. It is, indeed, Mephisto, something that is sure to make fans jump up and down with glee, since his debut in the MCU has been long-awaited. During his final conversation with Parker, he admits to being very busy, hinting that he has had his hands in a lot of the events that have been taking place over the course of previous Marvel projects.

Ironheart/Riri Williams (Dominique Thorne) in Marvel Television's 'Ironheart'. Photo by Jalen Marlowe. © 2024 MARVEL. All Rights Reserved.

After Riri defeats Parker, Mephisto appears to her, inviting her to sit down for a meal. He is very charasmatic and during their conversation, she ends up making a deal with him. Her friend Natalie (Lyric Ross) was murdered, but she was able to bring her back as an AI, only to lose her again. This is something that Riri is not able to deal with, so she asks Mephisto to bring her back.

In the end-credit sequence it is discovered that this is not an AI version of Natalie, but rather the actual Natalie, who is very confused and does not remember her fate. This is likely to cause a lot of problems for Riri going forward, because how to you explain someone returning to the world after being dead for several years?

Why Sacha Baron Cohen Is The Perfect Casting Choice For Mephisto

Sacha Baron Cohen as Mephisto in ‘Ironheart’. Photo: Disney+.

Casting Sacha Baron Cohen as Mephisto is a brilliant choice for several reasons. All you have to do is take one look at his scenes in the ‘Ironheart’ finale to know this. He is able portray someone who is trusting as well as mischievous. His human form is unsuspecting enough, but it is the fact that he knows how to pull information from his victims to discover what would be worth it to them to forfeit their souls.

For Parker Robbins, he wanted revenge against his father and money. For Riri Williams, she just wants her friend back, especially after getting a taste of what it was like to have her back in her life. The kicker for her is that this version of Natalie will not remember all of the healing and growing they did together when Natalie was an AI.

Sacha Baron Cohen is great at playing a character. We have seen that with his films like ‘Borat‘ and ‘Bruno‘. Even though Mephisto is mostly in his human form, there is one quick shot of him in his demon form, seen in a reflection, that is equal parts chilling and exciting. Sacha Baron Cohen, if given the chance, will bring Mephisto to life in a way that fans could seemingly only have imagined.

Mephisto Can Easily Return In ‘Avengers: Doomsday’ Or ‘Champions’

What fans have seen in the ‘Ironheart’ finale is just a small glimpse at what Mephisto is capable of. In the comics, he is the reason that Billy and Tommy Maximoff even exist. While they were created by their mother’s chaos magic, this was done in tandem with parts of Mephisto. At one point he goes so far as to reabsorb them. However, they find a way to return. This exact scenario is not likely to play out in the MCU, but it would make sense for the twins to cross paths with the Mephisto eventually, likely in a ‘Young Avengers’ or ‘Champions’ title.

It is not far fetched to believe that Mephisto could have orchestrated the events of ‘Avengers: Doomsday‘ as well. As we have seen, he is known for making deals and has the ability to bring people back from the dead. With Robert Downey, Jr. returning to the MCU, this time as Victor Von Doom and not Tony Stark, there is a chance Mephisto could absolutely be behind it. If someone wanted to make a deal with him to bring Stark back, it absolutely makes sense that this was Mephisto’s evil twist on things.

While it has not been revealed the lasting effect that Mephisto will have on the MCU, there is no way he is being introduced for Marvel to then do nothing with him. He is a powerful, manipulative demon who only has his own best interest at heart. One thing is for sure, our heroes are in trouble now that he is in the mix.