"An atomic explosion awakens Gammera, a giant fire breathing turtle monster from his millions of years of hibernation."
Albert Dekker
as Secretary of Defense
Brian Donlevy
as Gen. Terry Arnold
Diane Findlay
as Sgt. Susan Embers
John Baragrey
as Capt. Lovell
Dick O'Neill
as Gen. O'Neill
Eiji Funakoshi
as Dr. Hidaka
Michiko Sugata
as Nobuyo
Harumi Kiritachi
as Kyoke
Mort Marshall
as Jules Manning
Bob Carraway
as Lt. Simpson
Alan Oppenheimer
as Dr. Contrare
John McCurry
as A1C Hopkins
Steve Zacharias
as Sen. Billings
Walter Arnold
as American Ambassador
Thomas Stubblefield
as J.T. Standish
Richard Kraft
Writer
Sandy Howard
Director
Yonesaburo Tsukiji
Special Effects
Julian C. Townsend
Director of Photography
Noriaki Yuasa
Nobuo Munekawa
Sid Cooperschmidt
First Assistant Director
Shima Abe
Visual Effects
Visual Effects Director
VFX Director of Photography
Kiyoshi Ishida
Special Effects Assistant
Murray Rosenbloom
Sound
Fran Wolf
Producer's Assistant
L. Jeffery Norwalk
Production Assistant
Robert Myerson
Dialogue
Barbara Robinson
Script Supervisor
Nisan Takahashi
Screenplay
Wes Farrell
Original Music Composer
Artie Butler
Conductor
Music Arranger
Tadashi Yamanouchi
Music
Hank Aldrich
Production Design
Akira Inoue
Ken Barnett
Executive Producer
Robert Baron
Associate Producer
Yonejirô Saitô
Producer
Masaichi Nagata
Hidemasa Nagata
Hiroaki Uejima
Production Manager
Tôru Suzuki
Visual Effects Art Director
Tatsuji Nakashizu
Editor
Kazufumi Fujii
Visual Effects Compositor
Kiyoshi Kawamura
Visual Effects Production Manager
Mamoru Ishizaka
VFX Lighting Artist
Yukio Itō
Lighting Technician
Masao Ōsumi
Sound Recordist
Sound Supervisor
Toshikazu Watanabe
Keizô Murase
Costume Design
Kanju Yagi
Yasuei Yagi
Masao Yagi
Modeling