Mutaito is a fictional character from Dragonball. Mutaito was the greatest human martial arts master in the entire Dragonball universe. He was the original teacher of Master Roshi and the Crane Hermit and creator of the Evil Containment Wave. Using this technique Mutaito was able to seal the evil King Piccolo away in a electric rice cooker, however he died from the exhaustion of performing the move.
He appears again later when Goku goes into the past at Kaimi's Lookout. He trains Goku during this encounter and teaches Goku the basis of Ki based techniques, another major development in Goku's spiritual/physical journey.