Stuart PankinEarl Sinclair (voice) Jessica WalterFran Sinclair (voice) Jason WillingerRobbie Sinclair (voice) Sally StruthersCharlene Sinclair (voice) Kevin ClashBaby Sinclair (voice) Sam McMurrayRoy Hess (voice) Florence StanleyGrandma Ethyl Phillips (voice) Sherman HemsleyB.P. Richfield (voice) Suzie PlaksonMonica Devertebrae (voice) Allan TrautmanMr. Pulman (voice) Michael McKeanGuy in the Lab Coat (voice) Christopher MeloniSpike (voice) Thom SharpRichard (voice) Jessica LundyMindy (voice) Jason AlexanderGeneral H. Norman Conquest (voice) Tim CurryThe Devil (voice) Michael DornWeSaySoCorp Announcer (voice) Kirk R. ThatcherTimmy (voice) / Story Gary OwensNarrator (voice) Chuck VareskoTelevision Announcer (voice) Julianne BuescherCaroline Foxworth (voice) Michelan SistiAdditional Dinosaur Performer / Cavepeople Robert PicardoClerk (voice) Brian HensonArthur Rizzic (voice) / Reżyseria / Producer Richard PortnowMel Luster (voice) Paxton WhiteheadSir David Tushingham John GloverLucius (voice) Steve WhitmireSonny (voice) Michael EarlBoy Contestant (voice) Bruce LanoilJudge (voice) Joe FlahertyChief Elder (voice) Glenn ShadixMonster (voice) Joyce KurtzBrigitte (voice) Steve LandesbergGary (voice) Julia Louis-DreyfusHeather Worthington (voice) Ken Hudson CampbellCrazy Lou (voice) Jeffrey TamborHank Hibler (voice) Dan CastellanetaZabar (voice) Stephen CaffreyScabby (voice) Harold GouldDinosaur Chief (voice) Sally KellermanPteranodon (voice) Harry ShearerNarrator (voice) Perry AnzilottiChang Chang Julie MaddalenaCaveman's Wife Peter BonerzInsurance Agent (voice) Steven BanksFolk Singer (voice) Tim DoyleGeneral Chow (voice) / Scenariusz Mimi KennedyGlenda Molehill (voice) Jack L. HarrellMr. Harold Heffer (voice) David LeisureMr. Teddy Wolfe (voice) Heather McPhaulCaller (voice) Tony ShalhoubJerry Valentine (voice) John VernonMr. Ashland (voice) William SchallertWesayso Scientist (voice) Edie McClurgShopper (voice) Buddy HackettLouie (voice) George GaynesElder in Chief (voice) Fred TravalenaBob Hack (voice) Jason BernardEdward R. Hero (voice) Michael RichardsDirector (voice) Richard SimmonsRichard Simmons Dinosaur (voice) Kate McGregor-StewartNeighbor No. 3 (voice) Charles KimbroughDr. Ficus (voice) Wendie Jo SperberWendy Richfield (voice) Pat Crawford BrownStenographer (voice) Elizabeth CollinsLeeza (voice) Julius CarryMudbelly (voice) Jon PolitoTy Warner (voice) Conchata FerrellShelly (voice) David WarnerSpirit of the Tree (voice) Susan NorfleetPearl Sinclair (voice) Ed AsnerEvil Georgie (voice) Ernie AndersonAnnouncer (voice) (uncredited) Eileen DunnMiss Honeywell Jeff McCrackenReżyseria / Producer Brian HensonArthur Rizzic (voice) / Reżyseria / Producer Tim DoyleGeneral Chow (voice) / Scenariusz David A. CaplanScenariusz Lawrence H. LevyScenariusz Michael JacobsExecutive Producer John C. MulaProduction Design Brian SavegarSet Decoration Kevin PfeifferArt Direction Robert E. CollinsDirector Of Photography Ray ColcordOriginal Music Composer Bruce BroughtonOriginal Music Composer Kirk R. ThatcherTimmy (voice) / Story 
