The Gangreen gang, also known as the Gangreens for short, are minor antagonists, whose roles usually involve bullying Varian. Ace, Grubber and Big Billy are voiced by Jeff Bennet and Snake and Lil' Arturo are voiced by Tom Kenny.
characteristics: Ace- tall, slender, green skin, red eyes, black hair, fangs, handsome, cruel, mean, rude, selfish, lazy, bad-mannered, violent, dishonest, cowardly; Snake- tall, slender, black hair, pink eyes, green skin, black lips, long nose, handsome, mean, rude, violent, foolish, insecure, childish, snake-like mannerisms; Lil' Arturo-short, slender, green skin, black eyes, black hair, has an underbite, mean, violent, cruel, stoic, vain; Grubber- short, black hair, black eyes, grotesque, prefers not to speak, mean, silent, sneaky, unpredictable; Big Billy- tall, fat, red hair, blue eye, green skin, stupid, naïve, childish, reckless, violent
animated ages: teenagers
real ages: 21 real years
species: Big Billy-cyclops; Snake, Grubber, Ace, Lil' Arturo- unspecified, but presumbed to be humans
come from: The Powerpuff girls
subrace: negative characters
occupation: janitors in the restaurant
real names: Snake- Sanford D. Ingleberry; Lil' Arturo- Arturo de la Guerra; Big Billy- William W. Williams
- Their name is a play on the word "gangrene". It is not confirmed if they actually have gangrene.
- Ace has the habit of hitting Snake.
- Snake's real name is a play on the word "dingleberry".
- Lil' Arturo's last name de la Guerra means "of the war" in Spanish. His full name might be a reference to "Art of the war".
- Lil' Arturo speaks in a Mexican accent.