The first ever Secret Traitor , Fiona Hughes, has reflected on her experience in the castle and shared some behind the scenes secrets. Fiona, 62, has reflected on her experience in the castle, becoming the show's first ever Secret Traitor, collaborating with Claudia Winkleman, and earning the affectionate title of "hun". "I found it surreal really," she recalled. "That I was there and on the train. I mean, that's just magical in itself. Then when you get into the castle and it's exactly as you