Guest Stars Wayne Knight voices Baron Von Sheldgoose Grey DeLisle Griffin voices Xandra the Goddess of Adventure Jessica DiCicco voices April Jessica DiCicco voices May Jessica DiCicco voices June Dee Bradley Baker voices Ari the Aracuan Bird Kevin Michael Richardson voices Felldrake Dee Bradley Baker voices Leopold The Horrible Dee Bradley Baker voices Astro Mummies Grey DeLisle Griffin voices Tourist's Wife Matt Danner voices Tourist