The sixth episode of Merlin Secrets and Magic focuses on Camelot's odd couple, King Uther Pendragon and his troll wife Catrina, and on what Anthony Head has brought to this regal role, as explained by the actor himself together with other cast and crew members. Rupert Young also reflects on his character, Sir Leon. The episode goes behind the scenes to offer exclusive backstage footage, production details and on-set cast and crew interviews from the filming of Merlin's episode 2x06 Beauty and the Beast – Part Two.