Susan Blu

Grandma Spankenheimer (voice)

Alex Doduk

Jake Spakenheimer (voice)

Michele Lee

Cousin Mel (voice)

Elmo Shropshire

Grandpa Spankenheimer / The Narrator (voice)

Cam Clarke

Austin Bucks (voice)

Jim Staahl

Santa Claus (voice)

Kathleen Barr

Mrs. Claus / Rita Spankenheimer / I.M. Slime / Officer #1 (voice)

Maggie O'Hara

Daphne Spankenheimer (voice)

Scott McNeil

Frank Spankenheimer (voice)

Jim Fisher

Officer #2 (voice)