Guest Stars Grey DeLisle Griffin voices Xandra the Goddess of Adventure Jessica DiCicco voices April Jessica DiCicco voices May Jessica DiCicco voices June Wayne Knight voices Baron Von Sheldgoose Kevin Michael Richardson voices Felldrake Dee Bradley Baker voices Ari the Aracuan Bird Dee Bradley Baker voices Leopold The Horrible Jim Cummings voices Bear Rug John O'Hurley voices King Arthur Jim Cummings voices Bors the Younger Grey DeLisle Griffin voices Kay Dee Bradley Baker voices Tyrone Eric Bauza voices Merlin Matt Danner voices Gallahad Matt Danner voices Game Voice