Mr. G.Petto (voiced by Fred Willard): A teacher who originally appeared as recurring character in The Boondocks (Comic Strip). In the series, he is Riley's teacher. In the strip, however, he is Huey's teacher. He caused a lot of controversy when he called Riley a " n***a", with Riley and Grandad threatening to sue over the incident. He claimed to be confused as to how offensive it could be taken, given Riley's constant use of the word, and the hip-hop songs apparently advocating its usage. The incident eventually grew into a political debate, from left-wing and right-wing proponents. Throughout, he seemed regretful and apologetic for using it, admitting his own confusion over the word. Appears in "The S-Word".
| Main Characters | Huey • Riley • Grandad • Ruckus • Tom • Sarah • Jazmine • Michael |
| Recurring Characters | Ed Wuncler • Eddie Wuncler •Ed Wuncler lll • Gin Rummy • A Pimp Named Slickback • Thugnificent • Sitnkmeaner • Cindy McPhearson • Gangstalicious • Bushido Brown • Rev. Rollo Goodlove • Lethal Interjection Crew |
| Other Characters | Cairo • Dewey Jenkins • Hiro Otomo • Phil • Cookie Freeman • Jericho Freeman • The Hateocracy • Moe Jackson • Cristal • Luna • Ebony Brown • Ming • Mrs. Von Hausen • Butch Magnus • Lamilton Taeshawn • Devil • Shabazz K. Milton Berle • Catcher Freeman • Xzibit • Martin Luther King Jr. • Wedgie Ruldin • Deborah Leevil • Winston Jerome • Jimmy Rebel • Mr. Uberwitz • Sway Colloway • Dr. Doomis • The Booty Warrior • Lando Freeman • Ruckus Family • Big Nigga • Crazy Bitch • Pretty Boy Flizzy • Boss Willona • Geraldine • Kardashia |