Freiza
Freiza is the king of the Universe until the Trunks Saga. Freiza long ago destroyed Planet Vegeta, little did he know that his whole fate escaped and went to Earth. He was defeated by SSJ 1 Goku, later on destroyed for good by SSJ 1 Future Trunks. His special moves are deadly as hell (Freiza Beam, Freiza Disk).Cell
Cell is one of the most deadliest villians in the whole DBZ-GT series, besides Vegeta Bebe, or Buu, Cell is the best. He first started by absorbing innocent people and terrorizing cities. He has fought Piccolo, Android 17, and Goku and defeated them all, He has lost against Vegeta, Trunks, and was destroyed by SSJ 2 Gohan in the Cell Games.