Cooler
Cooler (クウラ Kūra) is the titular main antagonist in the movie Dragon Ball Z: Cooler's Revenge and an emulation of him acts as the main antagonist in Dragon Ball Z: The Return of Cooler. He is the older brother of Frieza and the eldest son of King Cold. Much like his brother, he can push his body through a transformation to increase his power. Also, like his brother Frieza, Cooler gains a biomechanical final form, but this is gained from merging with the Big Gete Star.