Alexandre Astier Arthur Director, Actor, Writer, Producer Lionnel Astier Léodagan Actor Alain Chabat Actor Jean-christophe Hembert Karadoc Actor Franck Pitiot Perceval Actor Anne Girouard Guenièvre Actor Audrey Fleurot La Dame du Lac Actor Thomas Cousseau Lancelot Actor Joëlle Sevilla Dame Séli Actor Nicolas Gabion Bohort Actor Jacques Chambon Merlin Actor Brice Fournier Kadoc Actor Serge Papagalli Guethenoc Actor Loïc Varraut Venec Actor Christian Clavier Le jurisconsulte Actor François Morel Belt Actor Antoine de Caunes Dagonet Actor Francois Rollin Loth Actor Aurélien Portehaut Gauvain Actor Caroline Ferrus Mevanwi Actor Henri Deneubourg Producer Agathe Sofer Producer