Question

running for five seasons from september 2008 to december 2012, who voiced the great dragon in the british fantasy-adventure tv series merlin?

Answer 1

Thanks for asking the question.
From September 2008 to December 2012, John hurt voiced the great dragon in British fantasy adventure t.v series MERLIN.
This dragon was named as Kilgarah. He also served as a title narrator for the show as well, for which he was credited for all episodes even when the great dragon was absent.
Hope it helps.

Answer 2

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$\implies$ ★ John Hurt

John Hurt as the voice of the Great Dragon, also known as Kilgharrah, the last of his kind after Uther destroys all of his kin and makes an example out of him by imprisoning him in a vast cave.

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