The Legion television series has cast Game of Thrones’ Harry Lloyd as Professor X.
The official Legion Twitter account posted the news stating Stephanie Corneliussen would be playing Gabrielle Haller, Legion’s mother, while Harry Lloyd has been cast as his father, Professor X. This is despite previous reports which suggested season 3 probably wouldn’t include Professor X.
Noah Hawley is pleased to announce two guest castings for the final year of #LegionFX
Source: IGN.com Game of Thrones' Harry Lloyd Cast as Professor X in Legion's Final Season