Astronauts Glenn and Fuji investigate Planet X and encounter mysterious aliens known as the Xiliens, who ask Earth's people to help save their world from "Monster Zero". In exchange for borrowing Godzilla and Rodan, the Xiliens offer a cure for cancer. As Glenn investigates, he develops a romance with Miss Namikawa and uncovers the Xilien's true intentions.
You can now watch Invasion of Astro-Monster online on the following streaming providers in the United States.
| Directing | Ishirō Honda | Director |
| Writing | Shinichi Sekizawa | Screenplay |
| Sound | Akira Ifukube | Original Music Composer |
| Camera | Hajime Koizumi | Director of Photography |
| Art | Takeo Kita | Production Design |
| Directing | Koji Hashimoto | Assistant Director |
| Crew | Eiji Tsuburaya | Special Effects |
| Editing | Ryôhei Fujii | Editor |
| Visual Effects | Eiji Tsuburaya | Visual Effects |
| Sound | Sadamasa Nishimoto | Sound Effects |
| Visual Effects | Hiroshi Mukoyama | Compositing Artist |
| Production | Masao Suzuki | Production Manager |
| Lighting | Kuichirô Kishida | Lighting Technician |
| Visual Effects | Eiji Tsuburaya | Visual Effects Director |
| Crew | Haruo Nakajima | Stunt Coordinator |
| Directing | Kôji Kajita | Assistant Director |
| Production | Tomoyuki Tanaka | Executive Producer |
| Crew | Fumio Nakadai | Special Effects |
| Crew | Sadamasa Arikawa | Special Effects |
| Sound | Hisashi Shimonaga | Music Arranger |
| Production | Tadashi Koike | Production Manager |
| Sound | Wataru Konuma | Sound Recordist |
| Art | Takeo Kita | Art Direction |
| Crew | Teruyoshi Nakano | Special Effects |
| Visual Effects | Teruyoshi Nakano | Visual Effects |
| Production | Henry G. Saperstein | Executive Producer |
| Production | Reuben Bercovitch | Executive Producer |
| Visual Effects | Motonari Tomioka | Visual Effects Camera |
| Visual Effects | Sadamasa Arikawa | Visual Effects Camera |
| Visual Effects | Yukio Manoda | Visual Effects |
| Visual Effects | Sadao Iizuka | Visual Effects |
| Lighting | Seishichi Kojima | Lighting Technician |
| Crew | Akira Watanabe | Visual Effects Art Director |
