Cooler is a fictional character from the Dragon Ball series, known for being the older brother of Frieza. He is depicted as a ruthless and powerful antagonist who seeks to surpass his brother's infamy. In his Final Form, Cooler exhibits increased strength, speed, and durability, making him a formidable foe. He appears in the Dragon Ball Z movies 'Cooler's Revenge' and 'The Return of Cooler' and is characterized by his cold, calculating demeanor and relentless pursuit of power, often challenging Goku and the Z Fighters in his quest for dominance.