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 McKeanPolice Chief Parish (voice) Christopher MeloniSpike (voice) Thom SharpRichard (voice) Jessica LundyMindy (voice) Jason AlexanderGrown Baby (voice) Tim CurryHenri Poupon (voice) Michael DornWeSaySoCorp Announcer (voice) Kirk R. ThatcherTimmy (voice) / Författare Gary OwensNarrator (voice) Chuck VareskoTelevision Announcer (voice) Julianne BuescherCaroline Foxworth (voice) Michelan SistiAdditional Dinosaur Performer / Cavepeople Robert PicardoClerk (voice) Brian HensonArthur Rizzic (voice) / Regisör / Producent Richard PortnowMel Luster (voice) Paxton WhiteheadSir David Tushingham John GloverLucius (voice) Steve WhitmireMr. Mason Dixon (voice) Michael EarlRefrigerator Monster (voice) Bruce LanoilJudge (voice) Joe FlahertyElder (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) / Författare 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 McCrackenRegisör / Producent Brian HensonArthur Rizzic (voice) / Regisör / Producent Tim DoyleGeneral Chow (voice) / Författare David A. CaplanFörfattare Kirk R. ThatcherTimmy (voice) / Författare Lawrence H. LevyFörfattare Michael JacobsExekutiv producent Brian SavegarSet Decoration John C. MulaProduction Design Kevin PfeifferArt Direction Robert E. CollinsDirector Of Photography Ray ColcordOriginalmusikkompositör Bruce BroughtonOriginalmusikkompositör 
