Leodagan from Kaamelott, maybe in the top three of my all time favorite character.
Kaamelott is a short french TV Show, comical and Leodagan is likely its greatest character. He is one of the Knight of the Round Table and make life impossible for Arthur and the others.

This site will definitly be done but I didn't start it yet. It'll be done in french (for obvious reason) and after this I'll work to an english translation for those wanting to discover his character, or from the start if I can get it to be a fanlisting.