Les Tremayne

as General Mann

as Dr. Philby

as Orin / Bombo / TV announcer (voice)

as Arthur (voice)

as The Well (voice)

as Alexander Graham Wolf / Santa Claus (voice)

as Father (voice)

as Snakey Bender

as Chester C. Cricket / Harry the Cat (voice)

as Humbug (voice)

as Dr. John Basso

as Thompson

as Mr. Tako / Dr. Shigesawa / Dr. Akira Makino / General Masami Shinzo / Commander Roberts / Narrator (voice) (uncredited)

as Norman Tolliver

as Ghost of Christmas Present (voice)

as Elimelech

as Frank Enright

as Prof. Theodore Gettell

as Dr. Sam Jorgenson

as Col. Leland

as Countdown Announcer

as Martin Cochrane

as Mr. Pendleton

as Senator Willis K. Harvey

as Harvey Butterworth

as Ken Landwell

as General Mann

as Mr. Henneman

as Colonel Daniels

as Harry Craig