The photo sparked widespread speculation about Avengers: Doomsday, as fans could not recall the two characters ever sharing screen time. Newton’s Cassie Lang and Gomez’s America Chavez have never appeared together in any Marvel Cinematic Universe project to date. Kathryn Newton on why she and Xochitl Gomez were in Marvel suits togetherWhen the photograph surfaced online, theories about a Young Avengers team-up in Avengers: Doomsday gained momentum. I love Cassie Lang. Production on Avengers: Doomsday continues as Marvel Studios builds toward the culmination of Phase 6.