Cosmo Starstalker

Fresh from the pages of Marvel's Modern Age, Cosmo Starstalker made their debut in Ultimate X-Men #10 in 2025, brought to life by the singular artistic vision of Peach Momoko — one of Marvel's most distinctive and celebrated contemporary creators. Still early in their comics journey with around ten appearances across Ultimate X-Men, Runaways, and Amazing X-Men, this is a character whose story is actively unfolding, sharing the page with heavy-hitters like Captain Marvel, Spider-Man, and Wolverine. If you love getting in on the ground floor with a brand-new Marvel voice, Cosmo Starstalker is exactly the kind of discovery worth bookmarking right now.