Kadro (20)
Yuri LowenthalBen Tennyson (voice)
Ashley JohnsonGwen Tennyson (voice)
Greg CipesKevin Levin (voice)
Dee Bradley BakerHumungosaur (voice)
Jeff BennettAzmuth (voice)
Chris PrattCooper (voice)
Powers BootheSunder (voice)
Peter StormareKing Xarion / King Viktor (voice)
Beth LittlefordSandra Tennyson (voice)
Scott MenvilleJimmy Jones (voice)
Greg EllisPrince Gyula / Cyborg #2 (voice)
J.K. SimmonsMagister Gilhil / Plumber (voice)
Fred TatascioreForeman / Surgeon / Hammer (voice)
Nicholas GuestSimons / Worker / Guest (voice)
Peter MacNicolOliver / Forever Knight #1 (voice)
Matt LevinCash (voice)
Tara StrongSerena / Young Ben Tennyson (voice)
Kevin Michael RichardsonMagister Pyke (voice)
Xander BerkeleyWarden Morgg / Trukk (voice)
Brian GeorgeVictor Valadis / Janitor (voice)