Zac Efron as Bobby (voice)

Taika Waititi as Ralph (voice)

Ricky Gervais as Interviewer (voice)

Tricia Helfer as Cottonballs (voice)

Pom Klementieff as Cinnamon (voice)

Diễm My as Interviewer (voice)

Olivia Munn as Marshmallow (voice)

George López as Ralph (voice)

H'Hen Niê as Ralph (voice)