Francis Dereham (Allen Leech)

Francis Dereham is the former lover of Queen Katherine Howard, whom she appointed as her private secretary after he blackmailed her with knowledge of her sexual history from her time living in the Duchess' house. He was arrested on suspicion of adultery in episode 4.05 of The Tudors; after being questioned and tortured, he was sentenced to be hanged, drawn and quartered. Dereham was brutally executed alongside Catherine Howard's current lover, Thomas Culpepper. He was played by Irish actor Allen Leech, and appeared on only two episodes of Season Four.