Brak

Brak was a villain in the original Space Ghost, but in Space Ghost Coast to Coast and Cartoon Planet, he is a more lovable yet dim-witted character. He was also the main character of the Brak Show. Brak is a member of the Council of Doom.

Space Ghost
Brak was in at least two episodes of the original Space Ghost but had whiskers and looked more like a cat. He also was evil.

SGC2C
Brak was a recurring character in Space Ghost Coast to Coast.

Cartoon Planet
Brak is a main character in Cartoon Planet, despite making barely any appearances in SGC2C.