Freddie Highmore
Arthur Montgomery
Mia Farrow
Granny
Logan Miller
Jake
Robert Stanton
Armand
Penny Balfour
Rose Montgomery
Ron Crawford
Archibald
Jean Bejote Njamba
Chief Matassalai (voice)
Lou Reed
Maltazard (voice)
Selena Gomez
Selenia (voice)
Jimmy Fallon
Prince Betameche (voice)
Snoop Dogg
Max (voice)
Fergie
Replay (voice)
Will.i.am
Snow (voice)