Cooler (クウラ Kūra, lit. “Coora”) 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 elder son of King Cold. Like his brother, he can push his body through transformations. Also, like Frieza, Cooler possesses a biomechanical incarnation, but this is gained from merging with the Big Gete Star.

Cooler’s appearance in his base form is similar to that of Frieza’s Final Form, though Cooler’s skin is deep-purple as opposed to the pure white of his brother. Cooler is also much taller than Frieza, being similar in height to Goku. Along with this, Cooler has a distinctively more masculine appearance than that of Frieza, who is more lean-built (excluding the engorged muscle mass when at 100% full power). Cooler also sports several armor-like carapaces on his chest, shoulders, shins, and head; these are apparently natural given how they too change when he transforms.