Guest Stars Michaela Dietz voices Darryl Sumalee Montano voices Mom Jordan Klepper voices Dad Lara Jill Miller voices Libby Jules Medcraft voices Andrea Eugene Byrd voices Principal O'Connor Julia Jones voices Ms Lightfoot Pamela Adlon voices Ms. Stein-Torres Jane Lynch voices Ms. Roop Diedrich Bader voices Mr. Bates Tara Strong voices Aunt Meg Tara Strong voices Joshua Yuri Lowenthal voices Uncle Ted Julian Zane voices Gordie Co Starring Diedrich Bader voices Additional Voices Sam Riegel voices Additional Voices