Freddie HighmoreAstro / Toby (voice) Nathan LaneHamegg (voice) Bill NighyDr. Elefun / Robotsky (voice) Donald SutherlandPresident Stone (voice) Charlize Theron"Our Friends" Narrator (voice) Nicolas CageDr. Tenma (voice) Madeline CarrollWidget (voice) Sterling BeaumonSludge (voice) Samuel L. JacksonZog (voice) David Alan GrierMr. Squirt / Math Cowboy / Boxer Robot (voice) Alan TudykMr. Squeegee / Scrapheap Head / Stinger Two (voice) Newell AlexanderGeneral Heckler (voice) Elle FanningGrace (voice) Pilar FlynnCora's Mom (voice) / Line Producer Dee Bradley BakerTrashcan (voice) Ryan StilesMr. Moustachio / Burning Robot (voice) David BowersMike the Fridge (voice) / Regisseur / Story Sofia BowersThe Little Stinker (voice) Nicole Fletcher"Oh No!" Kid (voice) Maryann GargerDr. Pigknuckle / Newscaster (voice) / Producer Tiffany HillkurtzBride to Be (voice) David FeissCowboy Robot (voice) / Story Artist Nicholas GuestFrench Waiter Robot (voice) Max BurkholderBilly (voice) Victor BonavidaSam (voice) Steve AltermanPress Secretary (voice) Rif HuttonMetro City Sergeant (voice) Madeleine RussellMetro City Girl (voice) Tony MatthewsCora's Dad (voice) David BowersMike the Fridge (voice) / Regisseur / Story Ken TsumuraExecutive Producer Maryann GargerDr. Pigknuckle / Newscaster (voice) / Producer Cecil KramerExecutive Producer Paul WangExecutive Producer Francis KaoExecutive Producer Pepe ValenciaDirector Of Photography John OttmanOriginal Music Composer Todd HommeMusic Supervisor Richard L. AndersonSupervising Sound Editor Pilar FlynnCora's Mom (voice) / Line Producer Samuel MichlapProduction Designer Maude LewisProduction Executive Luis GranéCharacter Designer Tim CheungHead Of Animation Jakob Hjort JensenAnimation Director Kim OoiAnimation Director Kevin JohnsonHead Of Story Sharon BridgemanStory Artist Gaëtan BrizziStory Artist David FeissCowboy Robot (voice) / Story Artist Jun FalkensteinStory Artist Elizabeth ItoStory Artist Christian LignanStory Artist Michael LachanceStory Consultant 
