Kame Sennin, also known as Master Roshi or Muten Roshi, is an iconic character in the Dragon Ball Z series. He is a wise and eccentric martial arts master who trained Goku, Krillin, and several other key characters. Though he appears as an elderly man with perverted tendencies, Kame Sennin is incredibly powerful, famed for inventing the Kamehameha technique. He often provides comic relief but also plays a crucial role as a mentor and adviser to the main cast throughout the series.