Piccolo

Demon King Piccolo, better known as Just Piccolo.(Pikkoro) He is a Former Enemy for goku (Gokū), more in the Animated series of "Dragon ball", then in early "Dragon ball Z", they team up as rivals to defeat Goku's evil brother: Raditz (Radittsu.) In middle Z, they are classified as teammates, as id put it. And faught the emperor of evil, "freiza" (Furīza). Then in the Android Saga, Piccolo and Goku are as freinds, including the fact piccolo trained Goku's son, Gohan, as they faught "Cell" (Saibō), then to the evil "Majin buu" (Maman Bū). Then to The God Of destruction "Lord Beerus" (Birusu Kyō), Then to the tournament of Universes to fight Frost (Shimo), a alternate version of freiza, Thus to lose, and fight him again in the T.O.P. He is a teacher/Baby sitter for Pan, the daughter of Gohan and Videl (Kare Wa Mita).