Kathryn Newton Confirms Her Return as Cassie Lang in AVENGERS: DOOMSDAY
Avengers: Doomsday has officially locked in the return of Kathryn Newton, who has confirmed she’s stepping back into the role of Cassie Lang, following her debut in Ant-Man and the Wasp: Quantumania.
She made the announcement in a pretty fun, very Marvel way. Newton, who recently appeared in Ready or Not 2: Here I Come, took to Instagram to reveal her return.
Instead of a simple post, she showed off a miniature director’s chair with her name on it, playing into Marvel’s ongoing cast reveal theme. It was a clever little tease that instantly got fans talking.
“And it’s tiny because Cassie Lang gets tiny,” Newton said in the video. “She’s small, but sometimes she’s big. It depends what’s happening.”
Newton also casually placed her Avengers cap on the chair before stepping out of her trailer, where a full hair and makeup crew was ready to get her camera-ready. It’s a quick glimpse, but it makes it clear she’s already in the thick of production.
Cassie won’t be going into this chaos alone. Her on-screen dad Scott Lang is also back, with Paul Rudd returning to the role. The film itself is shaping up to be one of Marvel’s biggest Marvel movie events yet, pulling together characters from across multiple corners of the MCU and beyond.
We’re talking about a lineup that includes Robert Downey Jr., Pedro Pascal as Mister Fantastic, Chris Hemsworth as Thor, Anthony Mackie as Captain America, Vanessa Kirby as Susan Storm, Florence Pugh as Yelena, Tenoch Huerta as Namor, Simu Liu as Shang-Chi, Sebastian Stan as Bucky Barnes, Letitia Wright as Black Panther, Ebon Moss-Bachrach as Thing, and Kelsey Grammer as Beast.
And that’s just part of it.
The cast keeps going with Lewis Pullman as Sentry, Danny Ramirez as Joaquín Torres, Joseph Quinn as Johnny Storm, David Harbour as Red Guardian, Winston Duke as M’Baku, Hannah John-Kamen as Ghost, Tom Hiddleston as Loki, Patrick Stewart as Professor X, Ian McKellen as Magneto, Alan Cumming as Nightcrawler, Rebecca Romijn as Mystique, James Marsden as Cyclops, and Channing Tatum as Gambit.
It’s a wild mix of Avengers, X-Men, Fantastic Four, and more, all colliding in one massive story.
For Cassie Lang, this could be a major step forward. Quantumania set her up as a next-gen hero, and Avengers: Doomsday might be where she really proves herself alongside Marvel’s biggest names.
The film is currently set to hit theaters on December 18, 2026.