In addition to videogame voice overs, Martinet has worked as a voice actor in commercials, cartoons, and promotions. At the E3 trade show in 2005, Charles (as an"Animal Crossing" character) could be found roaming the virtual village featured in the playable demo of "Animal Crossing: Wild World". Martinet did Mario's voice as the voice announcer for "Pac-Man Vs." on the Nintendo GameCube.