Cedric

"Clotpole. He, he said clotpole."

- Cedric to Arthur about Merlin Cedric was a thief who became possessed by the spirit of Cornelius Sigan.

Biography
Cedric was in the Tavern when a miner working under the castle told him about a 'Jewel' the size of a fist. Cedric came up with a series of lies and plans to try and get access to Arthur's Chambers to steal the key to the tomb. Cedric was then favoured by Arthur, replacing Merlin as his manservant so that he could steal the beautiful 'Jewel' found in the tomb underneath Camelot.

However, the Jewel actually contained the soul of Cornelius Sigan, a powerful and evil sorcerer from Camelot's past, who possessed Cedric's body. Sigan's soul later killed Cedric from inside and left Cedric's body when he attempted to take over Merlin's, who resisted using a powerful spell Kilgharrah gave him, and trapped Sigan's soul back into his jewel. (The Curse of Cornelius Sigan)