The Saiyans (サイヤ人, Saiyajin) are the primary fictional humanoid extraterrestrial race in the manga series Dragon Ball by Akira Toriyama. In the series, the Saiyans are a naturally aggressive warrior race who were, purportedly, the strongest warriors in the fictional universe. The main protagonist Son Goku (also called Kakarrot) is revealed to be a Saiyan upon the race's introduction. Most of the race was exterminated by a galactic overlord named Frieza after Goku was born.