Cassie Lang Returns in 'Avengers: Doomsday' Trailer

The Ant-Man family character is confirmed to appear in the upcoming Marvel blockbuster.

Apr. 17, 2026 at 3:21pm by

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An extreme close-up photograph of the textured fabric and metallic accents of Cassie Lang's Ant-Man superhero suit, capturing the glamour and high-stakes action of the upcoming Marvel film.The return of Ant-Man's daughter Cassie Lang in Avengers: Doomsday promises high-stakes action and the potential debut of the Young Avengers team.San Francisco Today

The first full trailer for 'Avengers: Doomsday' was shown at CinemaCon, revealing the return of Cassie Lang, the daughter of Paul Rudd's Ant-Man character. Cassie, who has been recast multiple times in the Marvel Cinematic Universe, is expected to make her debut as a superhero in the highly anticipated crossover film.

Why it matters

Cassie Lang's appearance in 'Avengers: Doomsday' suggests the debut of the Young Avengers team in the MCU. The character has been hinted at joining the Young Avengers in recent Marvel projects, and her inclusion in the star-studded 'Doomsday' cast further teases the formation of this new superhero group.

The details

The 'Avengers: Doomsday' trailer shown at CinemaCon featured several exciting moments, including Steve Rogers reuniting with Thor, Shang-Chi and Gambit fighting, and Doctor Doom overpowering Thor. One key scene revealed the return of Cassie Lang, the daughter of Paul Rudd's Ant-Man character. Cassie has been recast multiple times in the MCU, with Abby Ryder Fortson, Emma Fuhrmann, and Kathryn Newton all portraying the role at different points.

  • Cassie Lang first appeared in the 2015 film 'Ant-Man'.
  • The character was recast for 'Avengers: Endgame' in 2019.
  • Kathryn Newton took over the role in 'Ant-Man and the Wasp: Quantumania' in 2023.

The players

Cassie Lang

The daughter of Paul Rudd's Ant-Man character, who has been recast multiple times in the Marvel Cinematic Universe and is expected to make her debut as a superhero in 'Avengers: Doomsday'.

Paul Rudd

The actor who portrays Ant-Man, the father of Cassie Lang, in the Marvel Cinematic Universe.

Kevin Feige

The President of Marvel Studios, who revealed that the cast of 'Avengers: Doomsday' is the most ambitious in MCU history, featuring heroes from across the multiverse.

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What they’re saying

“Avengers: Doomsday's revealed cast features many of them, though that list was incomplete, as Marvel Studios's President, Kevin Feige, revealed.”

— Kevin Feige, President, Marvel Studios

What’s next

Fans will have to wait for the release of 'Avengers: Doomsday' to see how Cassie Lang's return and the potential debut of the Young Avengers team will impact the overall story of the film.

The takeaway

Cassie Lang's inclusion in 'Avengers: Doomsday' suggests the MCU is building towards the formation of the Young Avengers, a new superhero team that has been hinted at in recent Marvel projects. This further expands the ambitious scope of the upcoming crossover film.