Bob SessionsNick's Father / Meanest Monster in Monster Land / Mr. Bad / Gomora / Lobster Men / Geronimon / Dorobon (voice)
Nicholas CurrorNick
Sarah TauntonNick's Mother
Wendy DanversEdmund's Wife / Nick (voice) / Ultra Mother (voice)
Marc SmithVarious Ultras / Hanuman (voice) (uncredited)
กาญจน์ บุญชูBandit (uncredited)
ปรีดา สมทบสุขBandit (uncredited)
Jan WanpenBandit (uncredited)
