‘Merlin‘ series 5 episode 7: ‘A Lesson in Vengeance,’ airs Saturday, 17 November at 8.00-8.45pm on BBC One.
Darkness steals into the very heart of Camelot, as Morgana and her puppet Queen hatch a sinister plan to murder the King.
But when stable hand Tyr Seward becomes caught in the crossfire, he threatens to ruin everything… As the plot thickens and reaches its deadly climax, can a suspicious Merlin unravel the truth before it’s too late?
Colin Morgan is Merlin, Bradley James is Arthur, Angel Coulby is Gwen, Katie McGrath is Morgana, Richard Wilson is Gaius and John Hurt is the voice of the Great Dragon. Tom Hopper, Rupert Young and Eoin Macken return as The Knights of the Round Table. Special guest John Bradley as Tyr.