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Merlin
Episodes
The Diamond of the Day: Part One
Cast Appearances
The Diamond of the Day: Part One - Cast Appearances
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Guest Cast
Guest Crew
Cast Appearances
Crew Appearances
Gallery
Colin Morgan
as
Merlin
Angel Coulby
as
Guinevere "Gwen"
Bradley James
as
Arthur
John Hurt
voices
The Great Dragon
Katie McGrath
as
Morgana
Richard Wilson
as
Gaius
