Frieza

Unlike most primary antagonists, Frieza displays a civilized and refined demeanor, talking with a regal and eloquent nature. He even utilizes the Keigo dialect in the Japanese versions, which utilizes exceptionally respectful and formal phraseology. In the original and remastered dubs for Dragon Ball Z, while his polite demeanor is somewhat retained (such as his quipping when threatening the Nameks in his introduction that he neglected his manners and should have added "please" to his threat to them), it also ends up downplayed by emphasizing his more brutal nature. He tends to handle most situations with a systematic approach. He commonly utilizes dark humor, making twisted jokes and tasteless mockery of his foes before killing them. Frieza is fully aware of his reputation for brutality and makes no effort to deny it, but instead revels in it as evidenced by his introduction to the Namekians. Likewise, he has shown great anger at the idea of his cruel deeds being undone, such as the revival of all his previous victims from the Dragon Balls. Frieza can be best summed up as an intelligent, composed (for the most part), yet extraordinarily sadistic and completely heartless sociopath. His final form's character biography in Dragon Ball: Raging Blast 2 states that Frieza has unparalleled cruelty. He has even been commonly referred to as "The evilest guy in Universe 7". In Cooler's Revenge, Goku, when condemning Frieza's own brother Cooler, noted that Frieza was "filled with hatred."

Frieza is on Namek searching for the Dragonballs. Anyone who is in his way is an enemy. But what are you to him?