Guest Stars Gary Coleman voices Principal Shepherd Mike Desilets voices Additional Voices Damien Fahey voices Additional Voices John Viener voices Announcer Kevin Michael Richardson voices Additional Voices Julius Sharpe voices Additional Voices Rachael MacFarlane voices Secretary Jimmy Tatro voices Cool Kid #1 JP Karliak voices Additional Voices Jack Quaid voices Cool Kid #2 Andrew Santino voices Additional Voices Carlos Alazraqui voices Piñata Josh Robert Thompson voices Tommy Lee Jones Haley Tju voices Cheerleader Patrick Stump voices Sex Jingle Singer Gary Janetti voices Male Cheerleader Steve Callaghan voices Student #3