Frieza at full power
Frieza (フリーザ 'Furīza') is the emperor of Universe 7, who controlled his own imperial army and is feared for his ruthlessness and power. He is the descendant of Chilled, the second son of King Cold, the younger brother of Cooler, and the father of Kuriza. Frieza is the catalyst antagonist of the entire franchise, as it is his actions that led to Goku arriving on Earth. He has made several comebacks since his fight with Goku on Namek, including multiple invasions of Earth. Recently, he has been chosen to represent Universe 7 as the tenth member of Team Universe 7 for the Tournament of Power as a replacement for Good Buu. This makes him the most recurring villain of the Dragon Ball series. After the events of the Tournament of Power, he is revived and recovers his title as Emperor of Universe 7.
Frieza is the main antagonist of the Namek, Frieza, Trunks, Gods of the Universe, and Golden Frieza Sagas. He is also the main antagonist of the Dragon Ball Z: Bardock - The Father of Goku special and Dragon Ball Z: Resurrection ‘F’ film. He later serves as a villainous protagonist in the Universe Survival Saga and secondary antagonist in the Broly Saga.
For more information on this character, please visit their page on the Dragon Ball Wiki