SPIDER-MAN 4 Casts Sadie Sink In Key Role - Possibly As Jean Grey... Or Mary Jane Watson!

Stranger Things alum Sadie Sink has joined the cast of Sony Pictures and Marvel Studios' fourth Spider-Man movie, but there are conflicting reports about which character she'll be playing...

News

By MarkCassidy - Mar 12, 2025 01:03 PM EST

Filed Under: Spider-Man

A recent rumor claimed that Stranger Things star Sadie Sink might be in talks to play Jean Grey in Marvel Studios' X-Men reboot, and it looks like there was some truth to this report - although it seems she could be set to make her MCU debut as the mutant hero in a completely different movie.

Deadline reports that Marvel Studios and Sony Pictures have made their first major casting decision for the fourth Spider-Man movie, and Sink will play a "significant" role. The trade notes that the "prevailing theory" is that she will play Jean, but they have also heard that she could appear as "another beloved redheaded Spider-Man character."

The site is, of course, referring to Mary Jane Watson. But with Zendaya already playing a new take on "MJ," how exactly would that work? Well, since Spider-Man 4 is expected to include at least some Multiversal elements, Sink could play a variant of Mary Jane from another reality.

Though the Dune: Part Two star is set to reprise her role for this fourth outing, Deadline also confirms that "Holland’s old castmates will have reduced roles while newcomers are added to the ensemble, with Sink being the first major new role."

Some pretty wild rumors relating to the film have been doing the rounds over the past couple of months, and if every report was to be believed, Tom Holland's next adventure as the iconic hero would see him join forces with Tobey Maguire and Andrew Garfield's wall-crawlers, Venom, Ghost Rider, Black Cat, Daredevil and The Punisher to face off against Mephisto, Kingpin, Vulture, Knull, and an army of Symbiotes.

There hasn't been any talk of any X-Men characters being involved, but if Sink really is playing Jean Grey, it would obviously have major implications for the Marvel Cinematic Universe going forward, most pertinently Avengers: Secret Wars in 2027.

Here's what Holland had to say about the fourth solo Spidey movie in a recent interview.

"We have the best in the business working toward whatever the story might be. But until we’ve cracked it, we have a legacy to protect. The third movie was so special in so many ways that we need to make sure we do the right thing."

What do you make of this casting news? Be sure to let us know in the comments section.

Spider-Man 4 was recently pushed back a week from July 24, 2026 to July 31, 2026.

SPIDER-MAN 4: Rumored Update Sheds Light On Plans For The Movie's Villain And A Long-Awaited Debut - SPOILERS

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128 Comments

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JacobsLadder - 3/12/2025, 1:51 PM

Mary Jane? I mean she's cute, but Mary effing Jane???

Gabimaru - 3/12/2025, 1:56 PM

@JacobsLadder - Well it could work. she can be a new variant of MJ but these variant multiverse thing is getting too old now.

Malatrova15 - 3/12/2025, 1:57 PM

@JacobsLadder - she Is white and Ginger..thats all that matters

JacobsLadder - 3/12/2025, 2:13 PM

@Malatrova15 - i guess it's better than nothing. better than Zendaya for sure.

MakeAmericaGrea - 3/12/2025, 2:22 PM

@Malatrova15 -

It's closer to what Disney should do, if she is Mary Jane Watson.

But it's okay to not like them casting Sadie Sink as a character who should be played by a more beautiful White redhead.

NonPlayerC - 3/12/2025, 2:22 PM

@JacobsLadder - with Zendaya and holland engaged I highly doubt they are giving the MJ role to someone else. Im betting we get the x men in the new spider man movie. It would kinda make sense with Incursions destroying the multiverse and then bringing parts of the multiverse to consolidate down to one new somewhat rebooted MCU. they did say Spiderman 4 was pretty much a sequel to doomsday right?

JacobsLadder - 3/12/2025, 2:56 PM

@NonPlayerC - Kitty Pryde would be cool.

NonPlayerC - 3/12/2025, 3:05 PM

@JacobsLadder - Yeah ive always liked kitty. While id love to see just the true original 5 at some point in my lifetime, id assume they'll go for a bigger team. Im hoping for the original 5 plus colossus, shadow cat, nightcrawler, storm, and wolverine. damn it's hard to narrow that team down to a movie cast level.

Malatrova15 - 3/12/2025, 3:14 PM

@JacobsLadder - Hot dog water Is better than Zendaya

JacobsLadder - 3/12/2025, 3:16 PM

@NonPlayerC - a great Cyclops would be nice.

JacobsLadder - 3/12/2025, 3:18 PM

@Malatrova15 - Yeah, Im not seeing it with her. The girl from that horror movie with Thor where he jumps a dirt bike into a forcefield would be a great Mary Jane. She is absolutely gorgeous.

Malatrova15 - 3/12/2025, 3:18 PM

@MakeAmericaGrea - we can settle For her ..if we push they night cast Kamala Harris or other dei

spr0cks - 3/12/2025, 3:26 PM

@JacobsLadder - "better than Zendaya for sure" In what respect? Bearing in mind that Zendaya was playing a different character and not just like a variant or anything like that (despite the same initials).

JacobsLadder - 3/12/2025, 3:46 PM

@spr0cks - as Peter's main love interest. Zendaya's acting is limited. Although the last movie was her best of the trilogy.

RolandD - 3/12/2025, 5:13 PM

@NonPlayerC - I doubt we get the original five in a movie but I would still like them to be canonically the original five. That or the movie starts with the original five but adds some of the Giant-Size X-Men additions early on in the movie. I absolutely hated that in the flicks, Alex was an X-Man before Scott.

NonPlayerC - 3/12/2025, 5:41 PM

@RolandD - Yeah I mainly read x men as a kid. I couldn't get thru a single fox men movie without getting mad lol they either made the whole movie about wolverine or played fast and loose with the source material. I just want to be completely past the Fox men era

rychlec - 3/12/2025, 1:54 PM

That thumbnail isn't giving off Jean Grey or Mary Jane vibes.

MakeAmericaGrea - 3/12/2025, 2:45 PM

@rychlec -

I agree with you.

That may be why Disney would cast her as one or the other.

Liberals like punishing men by putting average women in movies, shows, video games, comics, politics, etc.

Apophis71 - 3/12/2025, 3:51 PM

@rychlec -

rychlec - 3/12/2025, 4:07 PM

@Apophis71 - I didn't say she wasn't attractive. That was probably a 'Stranger Things' pic as well. Just think Jean should be a truly imposing figure while Mary Jane is a total bombshell.

Apophis71 - 3/12/2025, 4:28 PM

@rychlec - Yeh, I know, was just picking a better pic rather than an old one in character as a child.

I doubt they will go there and do Mary Jane, least not yet anyway, in the source they were set up on a blind date by his Aunt who in the MCU is dead but that didn't pan out. Gwen was his next serious relationship, was only after her death that they reunited and became a full relationship.

As such with opting to have A MJ (just from differing initials) it would be odd for not one but two reasons to go with a more source accurate MJ in the very next solo film after NWH when in SM4 the spell will likely be broken.

Comics were never short of redheads, incredibly common (as easier to do well in comics over black or blonde hair). For such a rare natural hair color IRL yet so many in the source TBH she could be anyone if cast IF they stay source accurate :D

RolandD - 3/12/2025, 5:15 PM

@Apophis71 - There you go.

DocSpock - 3/12/2025, 1:54 PM

Typhoid Mary.

Malatrova15 - 3/12/2025, 1:57 PM

@DocSpock - ITS funny because she almost died of thypus when she was a baby ...maybe thats why she Is Ginger acording to RFK jr

soberchimera - 3/12/2025, 2:06 PM

@DocSpock - They should get someone closer to Charlie Cox’s age like Jessica Chastain.

MasterMix - 3/12/2025, 2:23 PM

@DocSpock - Although Emma Stone is known for having red hair, she's actually a natural blonde who reverted back to blonde for the role.

WruceBayne - 3/12/2025, 2:39 PM

@DocSpock - now you’re talking. I can see that before Mary Jane(even if Zendaya wasn’t already playing her) and definitely before Jean Grey.

DocSpock - 3/12/2025, 3:02 PM

@Malatrova15 -

I thought she ate too many carrots.

YonnyLayna - 3/12/2025, 3:34 PM

@DocSpock - Alice Eve was already Mary Walker should just take her in again

DocSpock - 3/12/2025, 5:48 PM

@MasterMix -

True.

DocSpock - 3/12/2025, 5:50 PM

@WruceBayne -

I’d love to see Typhoid Mary vex all the NYC characters.

DocSpock - 3/12/2025, 5:52 PM

@YonnyLayna -

I would like that a lot.

Gabimaru - 3/12/2025, 1:54 PM

She was great in stranger things. She could play felicia hardy. it could work

UncleHarm1 - 3/12/2025, 2:32 PM

@Gabimaru - Man, they really put everything and the Sink in this movie

I had to I apologize

MakeAmericaGrea - 3/12/2025, 2:46 PM

@Gabimaru -

But

Chesty blonde.

MakeAmericaGrea - 3/12/2025, 2:46 PM

@UncleHarm1 -

Ha.

Lisa89 - 3/12/2025, 1:56 PM

Gwen Stacy. She'll be the third red-head to die her hair blonde to play the role.

Malatrova15 - 3/12/2025, 1:58 PM

@Lisa89 - ALL her hair? 👀

Fogs - 3/12/2025, 2:27 PM

@Lisa89 - Spider-Gwen. Calling it now.

SPIDER-MAN 4 Casts Sadie Sink In Key Role - Possibly As Jean Grey... Or Mary Jane Watson!

Stranger Things alum Sadie Sink has joined the cast of Sony Pictures and Marvel Studios' fourth Spider-Man movie, but there are conflicting reports about which character she'll be playing...

SPIDER-MAN 4: Rumored Update Sheds Light On Plans For The Movie's Villain And A Long-Awaited Debut - SPOILERS

SPIDER-MAN: HOMECOMING Actor Bokeem Woodbine Teases MCU Return As Shocker

DISCLAIMER: As a user generated site and platform, ComicBookMovie.com is protected under the DMCA (Digital Millenium Copyright Act) and "Safe Harbor" provisions.