List of Merlin characters

This is a list of characters in the BBC fantasy drama television series Merlin, including supporting characters. Note: All characters are listed in alphabetical order by their first name.

Aglain (portrayed by Colin Salmon) was a Druid man who lived in the Forest of Acestir. In the second season episode, "The Nightmare Begins", he, with the assistance of Mordred, rescued Morgana from a group of serkets, and later healed the injury she sustained from one of the creatures. While she resided with him and his fellow Druids, Aglain encouraged Morgana not to fear herself and her emerging abilities, telling her that magic was not evil and not something Uther should hate. When Arthur and his knights arrived in pursuit of Morgana, whom they thought had been kidnapped by the Druids, Aglain tried to help Morgana and Mordred flee with his people. However, in the process, he was shot dead by one of Arthur's men.

Agravaine de Bois (portrayed by Nathaniel Parker) was the brother of Ygraine and Tristan de Bois and the uncle of Arthur who appeared in the fourth season. Though he was supposedly in Camelot to act as an advisor to Arthur, Agravaine was really there to help Morgana in her attempts to seize the throne. Holding Uther responsible for the deaths of his siblings, Agravaine placed a charmed necklace on the dying Uther's neck in "The Wicked Day" that would ultimately be responsible for the king's death in that episode.

Throughout the fourth season, Agravaine influenced Arthur heavily in matters of state, even encouraging the young king to go against his own instincts and wishes, such as killing the king of another kingdom who had been raiding inside Camelot's borders and distancing himself from Gwen in the episode, "His Father's Son". However Morgana often has doubts about Agravaine's abilities throughout Season 4 and is often seen threatening him and he in returns attempts to pacify her and assure Morgana of his abilities. Agravaine kept his cover as a seemingly loyal kinsman to Arthur until the penultimate episode, "The Sword and the Stone, Part One", when he cleared the way for Morgana and the warlord, Helios, to invade Camelot, even joining in the fighting during the battle. After Camelot was secured, Agravaine led a group of warriors in pursuit of Arthur and Merlin, who were fleeing to Ealdor. In the fourth season finale, "The Sword in the Stone, Part Two", Agravaine was chased into a series of caves by Kilgharrah. While seeking the fugitive Arthur, Agravaine was confronted by Merlin. The older man discovered then that Merlin was actually Emrys and he seems to express some desire to inform the world as he laughs and then attempts to kill him. In response, Merlin used his magic to slam Agravaine into a wall, breaking his neck and killing him instantly.

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