Freddie Highmore, Mia Farrow, Logan Miller, Robert Stanton, Penny Balfour, Ron Crawford, Jean Bejote Njamba, Lou Reed, Selena Gomez, Jimmy Fallon, Snoop Dogg, Fergie, Will.i.am, Jean-Paul Rouve
Arthur answers a distress call from Princess Selenia, who is menaced by the nefarious Maltazard.