Overview
- Kathryn Newton shared a social-media image on December 30 showing her wearing an 'Avengers: Doomsday' crew hat.
- Outlets and fans interpreted the photo as a sign she may appear in the film as Cassie Lang, though Marvel has not announced her casting.
- A widely watched 'chair video' used to signal cast members did not show a chair for Newton, while one for Paul Rudd’s Scott Lang appeared, keeping her status unclear.
- Coverage links a possible Cassie return to ongoing speculation about a Young Avengers setup, citing the MCU’s growing slate of younger heroes and protégés.
- Two official teasers and other recent materials have encouraged next‑generation theories for Doomsday, which is currently slated to open December 18, 2026.