Kathryn Newton, who plays the role of Cassie Lang in Ant-Man and the Wasp: Quantumania, has been discussing her experience working on the film, including her interactions with co-star Paul Rudd. She has also talked about the potential future of the Young Avengers and received advice from other actors, including Brie Larson. Newton's comments have been shared in various interviews, with some outlets focusing on her character's development and relationships within the Marvel Cinematic Universe.