Alexandre Astier as Arthur Pendragon

Lionnel Astier as Léodagan de Carmélide

Anne Girouard as Guenièvre

Thomas Cousseau as Lancelot du Lac

Franck Pitiot as Perceval de Galles

Jean-Christophe Hembert as Karadoc de Vannes

Audrey Fleurot as Viviane, la Dame du Lac

Jacques Chambon as Merlin

Antoine de Caunes as Dagonet

Alain Chabat as Le Duc d'Aquitaine

Loïc Varraut as Venec

Joëlle Sevilla as Dame Séli

Jean-Robert Lombard as Père Blaise

François Rollin as Loth d’Orcanie

Caroline Ferrus as Dame Mevanwi

Guillaume Briat as Le Roi Burgonde

Nicolas Gabion as Bohort de Gaunes

Christian Clavier as Le Jurisconsulte

François Morel as Belt

Guillaume Gallienne as Alzagar

Clovis Cornillac as Quarto

Sting as Horsa

Marie-Christine Orry as Fraganan

Jehnny Beth as Wulfstan

Brice Fournier as Kadoc

Serge Papagalli as Guethenoc

Géraldine Nakache as La Duchesse d'Aquitaine

Gilles Graveleau as Roparzh

Stéphane Margot as Calogrenant de Calédonie

Aurélien Portehaut as Gauvain

Étienne Fague as Lionel de Gaunes

Carlo Brandt as Méléagant

Pascal Vincent as Urgan

Valérie Kéruzoré as Nessa

Mehdi Rahim-Silvioli as La Pègue

David Ayala as Maclou

Jean-Charles Simon as Un tanneur

Lamari Amine as Un mineur

Hélène Rudermann as Une invitée burgonde

Yazan Al-Mashni as Un invité burgonde

Neil Astier as Le jeune Arthur

Tigran Mekhitarian as Le second

Océane Slim as Shedda

Antoine Bordes as Recaredo

Salwa Al Hajri as Furadja

Ayman El Kadhi as Le jeune Papinius

Louy Valy as Le jeune Lustus

Yoann Vellaud as Instructeur Libo

Achile de San Nicolas as Le jeune Varus

Charlie Konaté-Décourchalle as Le jeune Casca

Christophe Mazière as Un touriste

Isabelle Mattiussi as La prophètesse

Cyrille Coton-Bonacchi as Brise-Bûche

Mathieu Duboclard as La drille

Enzo Pirat as Un touriste

Chloé Guillot as La vendeuse de tisanes

Patricia Darré as La Pythie excalibur

Jérôme Palmer as Le vendeur de figurines

Sandra Cheyssial as La vendeuse de miniatures

Mark Eacersall as Le péager

Damien Roux as Le geôlier

Alain le Bars as Agila

Reggie Vermeulen as Le capitaine

Sakir Uyar as Dikhil

Bruno Fontaine as Elias de Kelliwic'h

Ariane Astier as Mehben

Jeanne Astier as Mehgan

Alban Lenoir as Ferghus

Anthony Martin as Le vendeur de tisanes

Ethan Astier as Lucan