Kimiko Glenn as Kiff (voice)

H. Michael Croner as Barry / Ghost Wolf / Additional Voices (voice)

Eric Bauza as Reggie / Additional Voices (voice)

Vella Lovell as Candle Fox / Additional Voices (voice)

Nic Smal as Principal Secretary / Wall Of Goat / Additional Voices (voice)

Lucy Heavens as Helen / Additional Voices (voice)

Tom Kenny as Trevor / Additional Voices (voice)

Mary Mack as Renée (voice)

Deedee Magno as Miss Deer Teacher (voice)

Steve Little as Glarbin (voice)

Aparna Nancherla as Miss Moufflé (voice)

Nichole Sakura as Terri (voice)

Josh Johnson as Harry (voice)

Rhys Darby as Trollie (voice)

Kent Osborne as Sweepy Steve / Additional Voices (voice)

Lauren Ash as Great Great Great Granny (voice)