X-Men (film), Marvel Database

X-Men (Earth-616), Marvel Database

Cain Marko (Earth-616), Marvel Database

List of Marvel Cinematic Universe films - Wikipedia

Professor X - Wikipedia

St. John Allerdyce (Earth-616), Marvel Database

Illuminati (Earth-616), Marvel Database

Robert Drake (Earth-616), Marvel Database

Sarah Rushman (Earth-616), Marvel Database

X-Men: Apocalypse, Marvel Database

Charles Xavier (Earth-616), Marvel Database

X of Swords, Marvel Database