Hector Con Carne

Hector Con Carne (Phil LaMarr): the main character, as described above and the antihero. He is a dynamic, evil playboy type, reduced to an anthropomorphic brain and a stomach after a gigantic explosion. Somehow, the stomach has taken on a life of its own. He is often frustrated by the difficulty of taking over the world in its current state.

minons
Boskov (Frank Welker): A former Russian circus bear, Boskov carries Con Carne's brain and stomach on his body, via metal plates on said spots. He is usually controlled by Con Carne and seems to care for everyone around him. He is sometimes difficult to control due to his animal instincts and lack of intelligence.

General Skarr (Armin Shimerman): Con Carne's paramilitary leader. He is a cold-hearted, hateful and harsh man, with a scar on his face, and one eye. He tends to be more evil than Con Carne himself, many times trying to overthrow his leader. He has made several appearances on Maxwell Atoms' other show, "The Grim Adventures of Billy & Mandy", as Billy's next door neighbor. He has also starred in the Billy & Mandy spin-off, Underfist. Skarr seems to resemble Fearless Leader, Herr Starr and General Armin Skull. It has been stated that he quit working for Hector Con Carne after they were "bought out" by the cartoon industry because they didn't want the competition in world domination.

Major Dr. Ghastly (Grey DeLisle): A mad scientist, Ghastly is the brains behind all Hector's plans. Ghastly does not really seem to be intent on taking over the world; she is more interested in inventing things and getting closer to Hector.