Cailee Spaeny‘s reported MCU Rogue casting just broke the internet, and fans can’t stop saying the same thing. X-Men fans flooded social media with their reactions to the Alien: Romulus star’s rumored debut as one of Marvel’s most iconic mutants. Fans largely approve of Cailee Spaeny as Rogue in the MCU X-Men rebootCailee Spaeny has reportedly landed the role of Rogue in Marvel Studios’ upcoming X-Men reboot film. (via @ApocHorseman) pic.twitter.com/HopOvbGGDi — Cosmic Marvel (@cosmic_marvel) July 31, 2026Many fans expressed enthusiasm for Spaeny’s reported casting across social media. That post further fueled excitement among X-Men fans online.