Guest Stars Lara Jill Miller voices Libby Jules Medcraft voices Andrea Eric Edelstein voices Geoff John DiMaggio voices Sir Alister Greg Baldwin voices Bartholomew Alan Lee voices Ollie Aparna Nancherla voices Sheela Grey DeLisle Griffin voices Lucretia Kari Wahlgren voices Grimbella Sue Ann Pien voices June Leonard Wu voices Ruben Diedrich Bader voices Mr. Bates Stephanie Sheh voices Esther Vincent Rodriguez III voices Jeff Baraka May Williams voices Abigail Eden Riegel voices Howlin' Harriet Zeno Robinson voices West Zeno Robinson voices Nashua Co Starring Rob Cantor voices Additional Voices Dana Snyder voices Additional Voices Secunda Wood voices Additional Voices