Spider-Man: Brand New Day casts Severance star in mystery role – and another Marvel hero could also appear in the MCU film

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A close up of Seth Milchick looking worried in Severance season 2 episode 4

Tramell Tillman has reportedly signed on to appear in Spider-Man 4 (Image credit: Apple TV Plus)

Spider-Man 4 has reportedly added a Severance star to its cast
Their role in the Marvel movie hasn't been publicly revealed
If true, they'd be an ideal fit for one of two roles in the MCU Phase 6 film

Severance star Tramell Tillman has reportedly joined the cast of Spider-Man: Brand New Day.

Per Variety, Tillman, who's best known for playing Mr. Milchick in the hugely popular Apple TV+ show, is said to be the latest actor to have signed on to feature in the highly-anticipated Marvel movie.

If true, Tillman will join Tom Holland and Zendaya, who reprise their roles as Peter Parker/Spider-Man and MJ from the webslinger's three previous solo films set in the Marvel Cinematic Universe (MCU), and Marvel veterans in Jon Bernthal's Frank Castle/The Punisher and Mark Ruffalo's Bruce Banner/Smart Hulk. Tillman would also line up alongside other newcomers to the Spider-Man franchise, including The Bear's Liza Colón-Zayas and Stranger Things' Sadie Sink.

A close up of Florence Pugh's Yelena Belova in Marvel's Thunderbolts movie

Tillman isn't the only actor who's believed to have signed on to appear in Brand New Day. According to industry insider DanielRPK, Florence Pugh's Yelena Belova could have a role to play in the Holland-led film, too. Given DanielRPK's spotty track record when it comes to cast announcements, though, it's best to take this particular rumor with a giant pinch of salt for the time being.

Pugh's Belova was last seen in Thunderbolts*, one of three new movies released by Marvel in 2025 that have all underperformed at the global box office. Pugh is one of 27 stars confirmed to appear in Avengers: Doomsday, so Belova is set to return in at least one of next year's big-screen MCU offerings. Whether she'll show up in Brand New Day – either in a minor supporting role or by way of a post-credits cameo – though, is unclear.

Who could Tramell Tillman play in Spider-Man: Brand New Day?

Peter Parker and Norman Osborn shaking hands in Your Friendly Neighborhood Spider-Man

But back to Tillman. According to Variety, his role in Spider-Man 4 is being kept under wraps. Marvel and Sony declined to comment on his apparent hiring, too, so we won't find out if Tillman is part of the cast and who he might be playing for a while.

That doesn't mean we can't speculate on who he could portray in the Marvel Phase 6 movie, though – and I think he'd be the perfect fit for one of two roles.

For one, I could see Tillman being tapped to play Jefferson Davis. A New York police officer, he's also the father of Miles Morales, which you'd already know if you've read any Marvel comic starring Morales and/or seen one or both of Sony's animated Spider-Verse movies. If other reports suggesting Colón-Zayas has been cast as Miles' mom Rio Morales, Tillman may have been hired to play the other half of this parental dynamic.

The other option that would make full use of Tillman's talents would be installing him as the MCU's race-swapped version of Norman Osborn. Marvel has previous form for casting a Black actor as Oscorp's founder and one of Spidey's most iconic villains in Green Goblin. Colman Domingo voiced a race-swapped version of the character in Disney+ animated series Your Friendly Neighborhood Spider-Man, so it wouldn't be such a novel concept if Tillman has been tapped to play a live-action iteration of Osborn.

Tillman's demonstrated his incredibly acting range in Severance, aka one of the best Apple TV+ shows, so he'd be a great fit for either of these characters. Indeed, whether it's using his experience playing the calm, sinister, and ambitious Milchick to portray a similar individual in Osborn, or exuding the warm and jovial yet stern personality Davis is known for, he'd knock either role out of the park.

But, what do you think? Who else could Tillman play? And are you excited to see him involved? Let me know in the comments.

Spider-Man 4 will swing into theaters on July 31, 2026. Before it does, read all about it in my dedicated guide on Spider-Man: Brand New Day.

As TechRadar's senior entertainment reporter, Tom covers all of the latest movies, TV shows, and streaming service news that you need to know about. You'll regularly find him writing about the Marvel Cinematic Universe, Star Wars, Netflix, Prime Video, Disney Plus, and many other topics of interest.

An NCTJ-accredited journalist, Tom also writes reviews, analytical articles, opinion pieces, and interview-led features on the biggest franchises, actors, directors and other industry leaders. You may see his quotes pop up in the odd official Marvel Studios video, too, such as this Moon Knight TV spot.

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