Piccolo
Piccolo was Goku's enemy in Dragon Ball until in Dragon Ball z when the sayian Radditz arrived on Earth.Picoolo is the offsrping of Piccolo Daimo making him half evil.Goku's son Gohan trained under piccolo and made piccolo more peaceful and not as evil as before.In Dragon Ball GT piccolo decides to die along with earth because he loved his home so much.When Super 17 was made in hell Goku went down there to defeat them.Piccolo asked KIng Yama if he could go to hell with Goku.Piccolo spent the rest of eternity in hell.
