Danny Kaye

Seymour S. Sassafras/Colonel Wellington B. Bunny/Antoine (voice)

Vincent Price

January Q. Irontail (voice)

Casey Kasem

Peter Cottontail (voice)

Paul Frees

Colonel Wellington's assistant / Santa Claus / Rooster (voice)

Joan Gardner

Mom / Madame Esmeralda / Bonnie Bonnet / Hat shop owner (voice)

Iris Rainer

Donna (voice)