Frieza (フリーザ) is one of the most significant villains in the Dragon Ball manga and the Dragon Ball Z anime. He also makes appearances in several Dragon Ball Z movies, as well as Dragon Ball GT episodes. Frieza is a galactic emperor of an unnamed race who runs the Planet Trade Organization and is feared for his ruthlessness and power. He is the descendant of Chilled, the son of King Cold, the younger brother of cooler, and the father of Kuriza. His name is a rephrase of "freezer."
Frieza had many races under his thumb in his planetary trade, but none were as prevalent as the Saiyans. Gifted with natural fighting ability, strength and the ability to become stronger after every battle, Saiyans became powerful weapons in Frieza's subjugation of planets. However, these very abilities made them a liability to the paranoid Frieza, afraid that, if left unchecked, the Saiyans could either unite and overwhelm him, or one day provide a warrior to rival Frieza himself. With the advice of his top henchman Zarbon, Frieza plans to wipe out the Saiyan race. He also ended up forcing King Vegeta into giving him his son, Vegeta, as part of their continued "cooperation", although King Vegeta secretly intended to betray Frieza before he could ever let him have his son.
Hearing the accomplishments of the low-level Saiyan Bardock and acting on his own fears of the Super Saiyan legend, Frieza resolves to eliminate all possible threats. He sends his henchman Dodoria and his elites to assassinate Bardock and his team, while Frieza himself sets a course to Planet Vegeta. On his arrival, King Vegeta and his men attempt an uprising both to end Frieza's reign and to rescue Prince Vegeta, but it ended disastrously with the King and his soldiers being slaughtered by Frieza as Zarbon and Dodoria watch.