Professor X will exist as part of the series’ lore, but has not been confirmed to appear on the TV show.
Actor Jemaine Clement, whom many will remember from Thor: Ragnarok director Taika Waititi’s supernatural comedy movie What We Do In The Shadows and such films as Men in Black 3, is confirmed to be part of the Legion cast too.
Legion is slated to debut on FX in 2017.
Showrunner Noah Hawley announced the news via Instagram, confirming that the Flight of the Conchords star will become part of the series.