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With Maltazard now seven feet tall and Arthur still two inches small, our hero must find a way to grow back to his normal size and stop the Evil M once and for all, with the help of Selenia and Betameche.
Freddie HighmoreArthur Montgomery
Mia FarrowGranny
Robert StantonArmand
Penny BalfourRose Montgomery
David GasmanThe Mechanic
Antony HicklingDouglas
Dashiell EavesSimon
Joseph RezwinBrad
Ron CrawfordArchibald
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