Given theMarvel Cinematic Universe’s tendency to scoop up young, talented stars on the rise, it feels inevitable thatMillie Bobby Brownwill eventually jointhe MCU timeline. Brown has been one of Hollywood’s most in-demand young actors sinceStranger Thingslaunched in 2016, and with that show coming to an end, her schedule is about to open up significantly. Marvel has been rumored to be interested in her for years, and now the perfect opportunity is emerging for her to appear inthe MCU’s future.
Millie Bobby Brown’s MCU debut has been the subject of speculation for years. There were early rumors she could appear inThe Eternalsand, given Marvel’s pattern of casting actors with existing blockbuster appeal, she remains a top contender for a future role. Interestingly, Brown worked with Joe and Anthony Russo on 2025’sThe Electric State, the team behind some of theMCU’s greatest films. The Russos, who are returning forAvengers: DoomsdayandAvengers: Secret Wars, have even expressed interest in working with Millie Bobby Brown in the MCU, rekindling speculation about Brown’s MCU introduction.
8Kitty Pryde Is A Popular Fan-Casting For Brown
First Appeared In Uncanny X-Men #129
One of the most popular fan-castings for Millie Bobby Brown in the MCU is Kitty Pryde, one of the X-Men’s most beloved younger members. Known for her phasing abilities and close relationship with Wolverine, Kitty is a character that many have been waiting to see properly introduced into the MCU’s new X-Men lineup. Brown has the charisma and acting chops to bring Kitty to life, balancing thecharacter’s youthful energy with the emotional depththat makes her such a compelling hero.
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Kitty Pryde is often depicted as a relatable, intelligent, and determined young mutant who plays a crucial role in many major X-Men storylines. Her ability to phase through solid objects makes her a unique fighter, but her real strength comes from herstrong moral compass and leadership skills. Brown has already proven she can play strong-willed yet vulnerable characters, making her a perfect fit for Kitty. Given that Marvel is likely to rebuild the X-Men from the ground up, casting Brown as Kitty could give the franchise a fresh, fan-favorite mutant to focus on.
7Millie Bobby Brown Would Make A Great Squirrel Girl
First Appeared In Marvel Super-Heroes (Vol. 2) #8
If Marvel wanted to take Brown in a more lighthearted direction, she would be an excellent choice for Squirrel Girl. Doreen Green, aka Squirrel Girl, is one of Marvel’s most underrated yet beloved comedic heroes, known for her upbeat personality, ability to talk to squirrels, and surprising combat skills. While Brown is best known for dramatic roles, she has shown great comedic timing in films likeEnola Holmes, making heran interesting choice for this quirky character.
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Squirrel Girl has been teased for years as a potential MCU addition, but she has yet to make her big-screen debut. Anna Kendrick and Shannon Purser have previously been fan-cast for the role, but Brown could bring a fresh take. She hasthe charm and energy to make Squirrel Girl’s quirky humor work, while also bringing depth to a character often dismissed as a joke. With the MCU’s foray into comedic characters, Brown’s Squirrel Girl could be a perfect addition, either in a Young Avengers-style lineup or her own fun solo project.
6Brown Is A Compelling Choice For The X-Men’s Rogue
First Appeared In Avengers Annual #10
Another strong potential role for Millie Bobby Brown in the MCU is Rogue. While the character was portrayed by Anna Paquin in Fox’sX-Menfilms, that version of Rogue was very different from her comic counterpart, who is typically depicted asa strong, confident Southern brawlerwith the ability to absorb powers through touch. If the MCU wants to bring a more comic-accurate Rogue to life, Brown could be an interesting and unexpected choice. Though she isn’t the first actress fans think of for Rogue, Brown has the acting range to take on the challenge.
She’s proven she can embody both strength and vulnerability, which are key to Rogue’s character. Brown would bring a fresh take to the role and seeing her go up against (or alongside) Captain Marvel in a future storyline could be agreat way to integrate her into the MCU’s evolving universe. Brown has already demonstrated her ability to play layered characters, as seen inStranger ThingsandEnola Holmes. She could capture Rogue’s tragic backstory while also delivering the character’s signature confidence and attitude.
5Pixie Is An Ideal X-Men Character For Millie Bobby Brown
First Appeared In X-Men: Academy X #5
If Brown were to join the MCU’s X-Men, another fitting choice would be Pixie. Megan Gwynn, also known as Pixie, is a lesser-known but beloved mutant with fairy-like wings, teleportation abilities, and a connection to magic. This role would allow Brown toembrace both the whimsical and dramatic aspects of superhero storytelling. Pixie is known for her bright, bubbly personality, which would be a departure from the more intense roles Brown has played, showcasing her versatility as an actress.
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Additionally, since the MCU is expanding its supernatural and magical elements with theDoctor Strangemovies and the perennially delayedBlade, Pixie could be introduced as a bridge between the mutant world and the mystical realms. Pixie is celebrated asone of Marvel’s strongest female characters, who has appeared in numerous comic lines since her introduction in 2004. Brown could readily step into such a role post-Stranger Thingsand make a standout character, providing audiences with a fresh and vibrant take on a younger X-Men hero who could interact with both the traditional mutants and Marvel’s magical side.
4Black Cat Needs To Make A Proper Cinematic Debut
First Appeared In The Amazing Spider-Man #194
Felicia Hardy, aka Black Cat, is long overdue for a proper live-action introduction, and Millie Bobby Brown could be an unexpected yet inspired choice. While Black Cat is typically depicted as a slightly older character with a flirtatious, morally ambiguous nature, the MCU could take a different approach by introducing a younger Felicia Hardy. Brown has already shown she can play characters withsharp intelligence and a rebellious streak, making her a strong candidate for Black Cat’s persona as a master thief.
Brown’s ability to balance strength and vulnerability would add new dimensions to Felicia, making her more than just Spider-Man’s occasional love interest. With Sony and Marvel Studios expanding the Spider-Verse, introducing Black Cat alongside Tom Holland’s Peter Parker could make for an exciting dynamic. A younger Feliciacould evolve into the classic femme fatale over time, giving Brown the chance to grow within the role while bringing fresh energy to one of Spider-Man’s most fascinating allies. While a version of Felicia Hardy was teased inThe Amazing Spider-Man 2, she still hasn’t had a live-action debut.
3Millie Bobby Brown Could Play A Live-Action Spider-Gwen
First Appeared In Edge of Spider-Verse #2
Spider-Gwen is a multiversal variant of Spider-Man’s ex-partner Gwen Stacy. She has becomeone of Marvel’s most beloved Spider-people, and Millie Bobby Brown could be a great fit for the role. Brown’s experience with action-heavy, emotionally driven stories makes her an ideal choice to bring Gwen’s tragic yet empowering journey to life. Unlike the traditional Gwen Stacy, Spider-Gwen is a confident, skilled superhero with a punk-rock edge, something Brown could embody with ease.
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Sony’sSpider-Versemovies proved how dynamic and captivating a cinematic Spider-Gwen could be, particularly inSpider-Man: Across the Spider-Verse,where she took on a much larger role. As the MCU’s multiverse has opened the door for various Spider-Man variants afterSpider-Man: No Way Home, and given Spider-Gwen’s popularity, it’s only a matter of time before she makes her live-action debut. Brown would bring theright mix of toughness and vulnerability to the role, ensuring that Gwen’s personal struggles – especially the loss of her Peter Parker – would hit just as hard as the action sequences.
2Millie Bobby Brown Would Be Amazing As The MCU’s Magik
First Appeared In Giant-Size X-Men #1
With the MCU expanding into supernatural storytelling and introducing the X-Men, Magik could be a game-changer, and Millie Bobby Brown would be a fantastic choice for the role. Magik, also known as Illyana Rasputin, is a powerful sorceress and mutant with a tragic past, having spentyears trapped in the demonic realm of Limbo. In Limbo, Illyana gained supernatural powers, a mystical sword, and the name Magik. Brown’s ability to portray resilience and emotional depth would make her an excellent Illyana, who struggles with darkness while striving to protect those she cares about.
Stranger Thingshas perfectly primed Millie Bobby Brown to battle hellish monsters armed with a mighty sword. The thematic parallels with her character, Eleven, are undeniable andmake Brown especially well suited to the role. The character’s connection to magic could tie her into Doctor Strange or Blade, making her a pivotal figure in Marvel’s supernatural lineup. Watching her wield the Soulsword and battle demons while balancing her inner turmoil would be a thrilling addition to the MCU’s mutant roster.
1Songbird Still Needs To Appear In The MCU
First Appeared In Marvel Two-in-One #54
Songbird, also known as Melissa Gold, is one of the most compelling characters from Marvel’sThunderboltscomics, whom Millie Bobby Brown would be an ideal choice to play in the MCU. Originally a villain before turning into a hero, Songbird has a complex redemption arc that could fit perfectly within the MCU’sgrowing roster of morally gray characters. Her ability to create powerful sound constructs would make for stunning visuals, and her personal struggles – including overcoming a troubled past – align with the type of characters Brown excels at portraying.
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With the MCU’sThunderbolts*movie, the MCU has a perfect opportunity to introduce Songbird as a new addition to the team in the future and potential sequel. Brown’s ability todeliver both fierce determination and vulnerabilitywould make her an excellent fit, allowing her to evolve from a street-level villain to a full-fledged superhero. Given her experience with emotional storytelling,Millie Bobby Browncould elevate Songbird’s journey, making her one of theMCU’s most intriguing and multidimensional new characters.
