Kilgharrah

The Great Dragon is a mighty dragon who was imprisoned and chained in a cave beneath Camelot by Uther Pendragon at the conclusion of The Great Purge. He served as a mentor to Merlin, telling the boy of his destiny to protect Prince Arthur Pendragon and help him become king of Albion (The Dragon's Call; The Mark of Nimueh).

The Dragon appears to possess foresight, evidenced by his claims regarding Arthur's destiny, and his prophecies concerning Mordred's role in Arthur's future (The Beginning of the End). When Arthur's dead uncle was resurrected as a wraith, the Dragon aided in the creation of a sword capable of destroying Tristan (Excalibur).

When Merlin defied him during the incident involving Arthur's near-death, the Dragon tried to kill him. Merlin conjured a shield and escaped, swearing that he would keep the dragon imprisoned forever. The discord increased when Merlin killed Nimueh, the high priestess of the Old Religion (Le Morte d'Arthur).

Appearances

 * "The Dragon's Call"
 * "Valiant"
 * "The Mark of Nimueh"
 * "A Remedy to Cure All Ills"
 * "The Beginning of the End"
 * "Excalibur"
 * "To Kill the King"
 * "Le Morte d'Arthur"