Dan Stevens stars as a fictional superhero who is the muton son of Professor Charles Xavier and who?
Dan Stevens Daniel Jonathan "Dan" Stevens (born 10 October 1982) is an English actor. He is best known for his role as Matthew Crawley in the ITV acclaimed period drama series "Downton Abbey". He also starred as David in the thriller film "The Guest", Sir Lancelot in "", and as The Beast/Prince in Walt Disney's live action adaptation of "Beauty and the Beast". Since 2017 he stars as David Haller in the FX series "Legion".
Cassandra Nova Cassandra Nova is a fictional supervillain appearing in American comic books published by Marvel Comics, most commonly in association with the X-Men. Created by writer Grant Morrison and artist Frank Quitely, Cassandra first appeared in "New X-Men" #114 (July 2001). Cassandra is a "mummudrai," a parasitic life form born bodiless on the astral plane. The mummudrai that became Cassandra became telepathically entangled with the future Charles Xavier, who possesses vast mutant telepathic powers. This granted Cassandra some psionic powers herself, including the ability to exit the womb and create a body.