Piccolo

Piccolo, otherwise know a Piccolo Jr. or Pikoro Junia, it's the last offspring of the evil King Piccolo and one of the protagonist in the DBZ/DBGT series. The purpose of his life was to avange his father by killing Goku but he was unable to do so; after some years of break, he is forced to form an alliance with Goku in order to stop Radiz, Goku's evil brother, during the fight he kills both Goku and Raditz with his signature move, the "Special Beam Cannon".Due Goku's death, he trains Gohan, forming a powerful bond of friendship. Later on, during the fight with Nappa, he learns that he is really a Namekian. He dies at the hands of Nappa, sacrificing himself to protect Gohan. Then he trains in the Otherworld with King Kai and the other fallen Z Warriors and eventually is ressurrected and and send to Planet Namek to fight Frieza, there he finds and fuses with Nail, a Namekian warrior defeated by Frieza and with his power Piccolo matches Frieza, unfortunatly the alien emperor had many transformations to release its true power and greatly injures Piccolo. He escapes from Namek alongside Bulma, Gohan and Krillin, leaving Goku to defeat Frieza.