Kame-Sennin ("Turtle Hermit"), also known as Muten-Rōshi or Master Roshi in the English anime dub of Dragon Ball, is a perverted martial arts instructor that lives on a small island and is the inventor of the Kamehameha technique.
Though he seems frail, he is a mighty warrior, having trained Grandpa Gohan and Gyū-Maō, Goku and Kuririn, and a few others. Despite his lechery and occasional whimsy or foolishness he is often depicted as wise, cantankerous, and perceptive.
