Some articles on kilgharrah:

List Of Merlin Characters - G - Great Dragon (Kilgharrah)
... Great Dragon (voiced by John Hurt), also known as Kilgharrah, is a legendary dragon that was imprisoned in Series One and Series Two in the caves by King Uther Pendragon ... Dragon is known to all the deceased Dragonlords as Kilgharrah ... Kilgharrah says that the destiny of Albion and Arthur lies only in Merlin's hands ...