Frieza is the main villain of the Dragon Ball series, introduced in the aptly named Frieza Saga in Dragon Ball Z. He was responsible for destroying the main hero's home planet - Planet Vegeta, which wiped all but a small few Saiyans. Later on, in Dragon Ball Super, he destroyed the Earth after almost getting beaten by SSGSS Goku & SSGSS Vegeta; but, inevitably, it was restored.