Britt RobertsonCasey Newton
George ClooneyFrank Walker
Shiloh NelsonYoung Casey Newton
Thomas RobinsonYoung Frank Walker
Matthew MacCaullDave Clark
Matthew Kevin AndersonBus Driver
Michael GiacchinoSmall World Operator
D. Harlan CutshallSkyscraper Foreman
Xantha RadleyHistory Teacher
David NyklScience Teacher
Paul McGillionEnglish Teacher
Garry ChalkJail Desk Jockey
Yusuf A. AhmedJetpack Dexter
Jedidiah GoodacreJetpack Buddy
Kate CrutchlowMonorail Mother
Priya RajaratnamYoung Astronaut
Parm SoorAstronaut's Father
Leena ManroAstronaut's Mother
Patrick SabonguiEiffel Tower Guard #1
Romuald HivertEiffel Tower Guard #2
Mathieu LardierPierre Clark
Darren ShahlaviTough Guard
Aidan GemmeYoung British Recruiter
Takayuki OkiGuitar Player
Natasha DavidsonGM Plant Worker
Liliane Leilan JumaHaitian Woman
Paul AnthonyThick Glasses (uncredited)
Kenia AriasDQ Patron (uncredited)
Kimberly ArklieHero Bus Patron (uncredited)
Nicholas BarreraWorld's Fair Patron (uncredited)
Barbara KeeganWorld's Fair Patron (uncredited)
Jason BellDave Clark #7 (uncredited)
Wendy BellGuest (uncredited)
Aimee BowenPedestrian (uncredited)
Chrystall FriedemannWorld's Fair Lady (uncredited)
PewDiePiePewDiePie (uncredited)
Darien ProvostMikey (uncredited)
Jackson Tessmer1964 World's Fair Boy (uncredited)
Marcus RosnerHandsome Harry (uncredited)
Julie JohnsonHarry's Girlfriend (uncredited)
Marshall ArchibaldJustin (uncredited)
Clint CarletonPierre Clark (uncredited)
Luis CastillejaGentleman - 1964 World Fair (uncredited)
Ellen Marguerite CullivanNeighbor (uncredited)
Leslie DanielsenDQ Patron (uncredited)
Michael Ray DavisLonely Man (uncredited)
Peter DwerryhouseNix Six (Scientist Financier) (uncredited)
Lindsey ElizabethAlice (uncredited)
Amy EsterleGreyhound Girl (uncredited)
Monique GandertonDave Clark #1 (uncredited)
Glen GordonDonnie / Science Kid (uncredited)
Kory GrimDave Clark Henchman (uncredited)
Robert PeoplesPedestrian (uncredited)
Anthony J. JamesDQ Patron (uncredited)
Tomas Johansson1964 World's Fair Patron (uncredited)
Kenneth KantymirNix Six (uncredited)
Andrew Kerr1964 World's Fair Attendee (uncredited)
Joshua LagosNeighbor (uncredited)
Tommy LentschDriver (uncredited)
Laura MacKillopBetsy (uncredited)
Grae MarinoMotorist (uncredited)
Catherine MichaudYoung Attendee (uncredited)
Jaeda Lily MillerYoung Casey (uncredited)
Lochlyn MunroUncle Anthony (uncredited)
Aliyah O'BrienFunctionary (uncredited)
Eddie PerezDave Clark #2 (uncredited)
Marc PrimianiWorld's Fair Patron (uncredited)
Kinley Rice1964 World Fair Girl (uncredited)
Kelly RieseWoman in Car (uncredited)
Robin T. RoseGame Warden (uncredited)
Bruce SalomonMax / Louis (uncredited)
Ranjit SamraPilot (uncredited)
Manoj SoodEconomics Teacher (uncredited)
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