So how about that Merlin cliffhanger? Arthur's beloved Gwen (Angel Coulby) has been corrupted by Morgana (Katie McGrath) and now the wicked sorceress has a Camelot insider to do her bidding!

And as if all that weren't excitement enough, this is the episode with Game of Thrones star John Bradley - aka Samwell Tarly - making a guest appearance! Bradley plays stable hand Tyr Seward, who is caught in the middle of Morgana's murderous plot...

Merlin continues this Saturday (November 17) at 8pm on BBC One.Cult: Merlin: S05E07: 'A Lesson In Vengeance'

> Merlin new image: 'Gladiator' star John Shrapnel in BBC fantasy drama

> Merlin star Bradley James: 'Arthur is ready to learn about magic'



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