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Merlin: The Diamond of the Day: Part One

High up in the hills, a great horde gathers as Morgana gets ready for war with a vengeful Mordred. Merlin begins to feel the weight of his destiny like never before as the ancient prophecies play out with shocking accuracy.


Episode Info


Episode number: 5x12
Airdate: Saturday December 22nd, 2012


Alternate Airdates:

AU (ten) Dec 30, 2012
US (Syfy) May 24, 2013

  • Currently 9/10
9/10 (2 Votes cast)
Guest Stars
Alexander VlahosAlexander Vlahos
As Mordred
Recurring
Eoin MackenEoin Macken
As Sir Gwaine
Recurring
Erin RichardsErin Richards
As Eira
Recurring
John Lynch (1)John Lynch (1)
As Balinor
Recurring
Rupert YoungRupert Young
As Sir Leon
Recurring
Tom HopperTom Hopper
As Sir Percival
Recurring
Main Cast
Colin MorganColin Morgan
As Merlin
John HurtJohn Hurt
voiced The Great Dragon
Katie McGrathKatie McGrath
As Morgana
Angel CoulbyAngel Coulby
As Guinevere "Gwen"
Warning: Merlin season 5 episode 12 guide may contain spoilers
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