An atomic explosion awakens Gammera, a giant fire breathing turtle monster from his millions of years of hibernation.
Secretary of Defense
Gen. Terry Arnold
Sgt. Susan Embers
Capt. Lovell
Gen. O'Neill
Jules Manning
Dr. Contrare
Sen. Billings
J.T. Standish
Lt. Clark
Lt. Simpson
A1C Hopkins
American Ambassador
Soviet ambassador
British ambassador
Dr. Hidaka (voice)
Aoyagi (voice)
Kyoke (voice)
Nobuyo (voice)
Toshio (voice)
Professor Murase / Captain Foster / New York newsreader / Mr. Ueda (voices)
Chidori Maru navigator (voice)
news announcer (voice)
misc. roles (voice)
