Warning! This article contains SPOILERS forThe Fantastic Four: First StepsSue Storm actor Vanessa Kirby discusses herAvengers: Doomsdayco-starRobert Downey Jr. FollowingThe Fantastic Four: First Steps' ending, the titular team’s next direct threat is Doctor Doom. But the Fantastic Four won’t face Robert Downey Jr.’s villain alone, as Doom is set to become an enemy to the entire Marvel multiverse inAvengers: Doomsday.

In an interview withVariety,Vanessa Kirby explains that Robert Downey Jr. is playing an active role inAvengers: Doomsday’s production beyond filming his scenes.According to Kirby, Downey is always on set as a leader figure, looking after the whole cast. Read Vanessa Kirby’s full comments:

Robert Downey Jr sitting in a set chair with the Avengers: Doomsday cast

Yeah! Robert’s never not been on set. He’s always there. He is our leader. We call him our Godfather. He’s looked after us. It’s such a joy working with the Russos and him, because they’ve had such deep collaboration for so long.

What Vanessa Kirby’s Robert Downey Jr. Comments Mean For Doctor Doom

Robert Downey Jr.’s Doctor Doom Is Practically Avengers: Doomsday’s Protagonist

It makes perfect sense for Robert Downey Jr. to take on a leadership role on the set ofAvengers: Doomsday. WhileAvengers: Infinity WarandAvengers: Endgamewere built around Thanos,Avengers: Doomsdaycenters on Doctor Doom as the main selling point. AfterRobert Downey Jr. retired his Iron Man portrayal, his Doctor Doom performance will drive the entire film’s momentum.

Robert Downey Jr. has built the necessary experience to guidetheAvengers: Doomsdaycast.Downey understands the Marvel machinery like no other. On theAvengers: Doomsdayset, Robert Downey Jr.’s constant presence can help keep the cast and crew focused and motivated, honoring what made earlier MCU crossover projects successful.

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Robert Downey Jr’s Marvel legacy is at stake. Taking on a character as iconic as Doctor Doom is a huge risk in the eyes of fans who already view his Iron Man as untouchable. To make his return worthwhile, Robert Downey Jr. needs to deliver a standout performance, and that can only happen if the entire cast and crew rise to the occasion as well.

Our Take On Vanessa Kirby’s Robert Downey Jr. Comments

Doctor Doom’s Relationship With The Fantastic Four Will Likely be Key To Avengers: Doomsday

One of the main throughlines inAvengers: Doomsdaymay be Sue Storm and Doctor Doom’s conflict. After sacrificing her life to save Franklin from Galactus, Sue Storm is the one who witnessesRobert Downey Jr.’s Doctor Doom kidnapping her son inThe Fantastic Four: First Steps' post-credits scene.InAvengers: Doomsday, Sue’s drive to rescue Franklin will likely anchor much of the story’s emotional tension.

As the rest of the multiverse trembles inAvengers: Doomsday, Sue Storm’s personal quest to save her son might be the heart of theAvengers: Doomsday.The Fantastic Four: First Stepsraises the stakes for both the Fantastic Four and Doctor Doom with Franklin’s kidnapping. AfterAvengers: DoomsdayandAvengers: Secret Wars, Sue Storm and Doctor Doom’s dynamics might be maintained.