Megalo

Megalo is the main antagonist of the anime Topo Gigio (Toppo Jījo - Yume Miru Toppo Jījo), a japanese animated series based on the Italian puppet show of the same name. He is voiced by the late Daisuke Gori, known for having also rounded villains like King Cold in Dragon Ball Z and Uighur in Fist Of The North Star.

Description
Megalo is a large black cat, belonging to Mrs. Knopp. He is a sworn enemy of Gigio, who never misses an opportunity to provoke him by calling him "piglet" or "hippopotamus" because of his considerable size. In spite of this it is very agile and dangerous, as well as very clever, even if all its attempts to capture Gigio always end up with a hole in the water, either because of the cunning of the mouse, or because of unforeseen fate and almost always for the intrusion by Knopp, either because of the defaults of his two highly skilled subordinates, Arro and Braccio. Furthermore, he is an irascible, cynical, overbearing, selfish, cunning, cruel and aggressive cat, even if he is forced to play the pimp with Mrs. Knopp in order to preserve his affluent lifestyle and his position as head of the cats of city. Despite this he hardly tolerates his mistress, who always calls "La Vecchia", and especially the long walks that force him to do every day, as they almost always foresee the appearance of Topo Gigio and his friends. He is terrified of vampires, fleas and reptiles and also suffers from vertigo.