Once a fugitive druid child, aided by Merlin in escaping from Uther's anti-magic reign, Mordred has now grown into a young man, but as friend or foe to Camelot?
Alexander Vlahos studied at the Royal Welsh College of Music & Drama in Cardiff. He first appeared on television in the BBC Wales series Crash, and has appeared on Doctors and Privates.
Magic may save Gwen, but only Arthur can reach her.
Listen to the Merlin star answer your questions from Facebook.
The Merlin star answers your questions from Facebook.
The Merlin star sits down to answer your questions from Facebook.