United States / Dec 15, 1966
Overall average
5.0/10
Trailer

Videos
Plot
An atomic explosion awakens Gammera, a giant fire breathing turtle monster from his millions of years of hibernation.
Main cast
Full cast
| Actor | Role |
|---|---|
| Harumi Kiritachi | Kyoke |
| Mort Marshall | Jules Manning |
| Bob Carraway | Lt. Simpson |
| Alan Oppenheimer | Dr. Contrare |
| John McCurry | A1C Hopkins |
| Steve Zacharias | Sen. Billings |
| Walter Arnold | American Ambassador |
| Thomas Stubblefield | J.T. Standish |
Genres
HorrorScience FictionAction
Technical details
| Detail | Value |
|---|---|
| Original title | Gammera the Invincible |
| Original language | English (EN) |
| Spoken languages | English |
| Production countries | United States of America, Japan |
| Status | Released |
| Production companies | World Entertainment Corp., Harris Associates, Ross-Gaffney, Inc., Titan Productions, Inc., Daiei Film |
| Release date | 15 dicembre 1966 |
| Executive producer | Ken Barnett, Masaichi Nagata, Hidemasa Nagata |
| Production | Robert Baron, Yonejirô Saitô |
| Writer | Richard Kraft, Nisan Takahashi, Robert Myerson |
| Editing | Tatsuji Nakashizu |
| Cinematography | Julian C. Townsend, Nobuo Munekawa |
| Assistant directors | Sid Cooperschmidt, Shima Abe, Sandy Howard, Noriaki Yuasa, Barbara Robinson |
| Lighting | Yukio Itō, Mamoru Ishizaka |
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| Camera operators | Julian C. Townsend, Nobuo Munekawa |
| Additional photography | Julian C. Townsend, Nobuo Munekawa |
| Production design | Hank Aldrich, Akira Inoue |
| Art direction | Hank Aldrich, Akira Inoue |
| Set decoration | Hank Aldrich, Akira Inoue |
| Special effects | Yonesaburo Tsukiji, Kiyoshi Ishida, Tôru Suzuki |
| Visual effects | Yonesaburo Tsukiji, Kiyoshi Ishida, Kazufumi Fujii, Kiyoshi Kawamura, Mamoru Ishizaka, Keizô Murase, Kanju Yagi, Yasuei Yagi, Masao Yagi |
| Music | Wes Farrell, Tadashi Yamanouchi, Murray Rosenbloom, Artie Butler, Masao Ōsumi, Toshikazu Watanabe |
| Sound | Murray Rosenbloom, Wes Farrell, Artie Butler, Tadashi Yamanouchi, Masao Ōsumi, Toshikazu Watanabe |
| Costume design | Keizô Murase, Kanju Yagi, Yasuei Yagi, Masao Yagi |
| Makeup | Keizô Murase, Kanju Yagi, Yasuei Yagi, Masao Yagi |
| Hairstyling | Keizô Murase, Kanju Yagi, Yasuei Yagi, Masao Yagi |
Release dates
Theatrical release
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