Grim / Sperg (voice)
Billy / Billy's Dad (voice)
Mandy (voice)
Irwin (voice)
Velma Green the Spider Queen (voice)
Jeff the Spider (voice)
Chocolate Cow (voice)
Gladysaur (voice)
Principal Goodvibes (voice)
Pud'n (voice)
Lord Pain (voice)
Mr. Spleen (voice)
Mindy / Velma's Mom / Eris (voice)
Kalgoron (voice)
Ms. Butterbean (voice)
Curtis (voice)
Boogey (voice)
Plain Cow (voice)
General Skarr (voice)
Velma's Dad / Spider #1 (voice)