Guest Stars Grey DeLisle Griffin voices Xandra the Goddess of Adventure Wayne Knight voices Baron Von Sheldgoose 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 Jim Cummings voices Bear Rug John O'Hurley voices King Arthur Dee Bradley Baker voices Tyrone Grey DeLisle Griffin voices Kay Jim Cummings voices Bors the Younger Eric Bauza voices Merlin Matt Danner voices Gallahad Matt Danner voices Game Voice