Master Roshi, known in Japan as Kame Sennin (亀仙人, lit. "Turtle Sage") as well as Muten Rōshi (武天老師, lit. "Old Master of Martial Arts"), is a fictional character in the Japanese manga series Dragon Ball and its anime adaptations created by Akira Toriyama.
Within the series, he is an elderly martial arts master, born on March 20, who is the creator of the Kamehameha (カメハメ波) technique. His students include Grandpa Son Gohan, The Ox-King, Son Goku, Krillin and Yamcha. He is bald, sports a thick van dyke beard, and wears sunglasses, beach clothes, or martial arts suits. He usually wields a walking stick and, in early appearances, wears a turtle's shell on his back. In spite of his lechery, cantankerousness and occasional whimsy or foolishness, he is often depicted as wise and perceptive. While a popular character with Dragon Ball fans, the depiction of some of his antics has been met with criticism or deemed highly controversial.