Ben SchwartzRandy Cunningham / The Ninja (voice) Andrew Lewis CaldwellHoward Weinerman (voice) John DiMaggioHannibal McFist (voice) Kevin Michael RichardsonWillem Viceroy III (voice) Tim CurryThe Sorcerer (voice) Ben CrossThe Sorcerer (voice) Scott MenvilleBucky (voice) Dave WittenbergBash Johnson (voice) Jim RashPrincipal Slimovitz (voice) Cassie ScerboHeidi Weinerman (voice) Grey DeLisleFlute Girl (voice) Sarah HylandTheresa Fowler (voice) April StewartMarci McFist (voice) Kari WahlgrenMorgan (voice) Megan MullallyMrs. Driscoll (voice) Fred TatascioreSundown (voice) Laura MaranoRachel (voice) John OliverCoach Green (voice) Joel McHaleFirst Ninja (voice) Dee Bradley BakerJulian (voice) David KoechnerMac Antfee (voice) Neil FlynnMr. Bannister (voice) Piper CurdaDebbie Kang (voice) Andy DickJerry Driscoll (voice) Judy ReyesSeñora Jorge (voice) Bobcat GoldthwaitDickie (voice) Annie PottsTawny Zingwald (voice) Jason EarlesBrent (voice) John WitherspoonS. Ward Smith (voice) Carlos AlazraquiFranz Nukid (voice) David Alan GrierRudd Rhymez (voice) Parvesh CheenaPradeep (voice) Steve ZahnTerry McFist (voice) Simon PeggPitch Kickham (voice) Billy IdolSpikey Hair Bot (voice) Jennifer TillyAmanda Levay / Sorceress (voice) 
