Freddie Highmore as Arthur Montgomery

Mia Farrow as Granny

Logan Miller as Jake

Robert Stanton as Armand

Penny Balfour as Rose Montgomery

Ron Crawford as Archibald

Jean Bejote Njamba as Chief Matassalai (voice)

Lou Reed as Maltazard (voice)

Selena Gomez as Selenia (voice)

Jimmy Fallon as Prince Betameche (voice)

Snoop Dogg as Max (voice)

Fergie as Replay (voice)

will.i.am as Snow (voice)

Jean-Paul Rouve as Le père (voice)