At some point, Matelot joined the crew of the commandeered British Royal Navy vessel HMS Interceptorunder Jack Sparrow. He had been hired by Joshamee Gibbs in Tortuga. They sailed through a storm, during which Matelot and the other crewmen were soaked in the rain. He looked over the rail of the Interceptor into the sea as the ship passed through a dangerous passageway the next day. They later arrived at their destination, Isla de Muerta, where Jack Sparrow and William Turner went into the island alone. Will later came out without Jack, but the crew kept to the Pirate's Code and went on without him. When the Black Pearl attacked the Interceptor, Matelot loaded and manned the cannons on the top deck as the Pearl chased their ship. The Interceptor later turned around to fight the Pearl and its crew, and the ships opened fire on each other. During the ensuing battle, he was stabbed in the back by Maximo and pitched into the sea. His body was left in the ocean.
"Matelot" is a French word meaning "seamen". In pirate slang, "Matelot" referred to a pirate who was in a union known as "matelotage" with another pirate; they shared all their possessions (even the wives) and if one of them died, the other succeeded him.