Claude Duchamp is the son of circus acrobats Elodie Duchamp and Nikolai Kitano. Like both of his parents, Claude is a very talented contortionist. His mother began his training at a very early age, while she was living alone in the city of Marseille. Although Claude has not yet appeared in the Sapphire series, he is still a major character in other fan fictions written by SpyHunter89, such as BFF Benders, a crossover with the Totally Spies! series.