Guest Stars Michaela Dietz voices Darryl Sumalee Montano voices Mom Jordan Klepper voices Dad Lara Jill Miller voices Libby Eric Edelstein voices Geoff John DiMaggio voices Sir Alister Greg Baldwin voices Bartholomew Kari Wahlgren voices Grimbella Grey DeLisle Griffin voices Lucretia Liza Koshy voices Jinx Secunda Wood voices Ghost Doctor Alanna Ubach voices Sonia Co Starring John DiMaggio voices Additional Voices Eden Riegel voices Additional Voices