

MovieScience FictionActionAdventure
Invasion of the Neptune Men
3.1(28)19611h 14m
Astronomer Shinichi Tachibana has a secret identity as the superhero "Iron Sharp" and is well beloved by children. When they are attacked by a group of metallic aliens, Iron Sharp drives the aliens away. The resourceful Tachibana helps develop an electric barrier to block the aliens from coming to the Earth. After several losses by the aliens, they announce that they will invade the Earth, throwing the world into a state of panic.
- Director
- Koji Ota
- Writers
- Shin Morita
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Cast

Sonny Chiba
Tachibana - Scientist / Space Chief

Shinjirō Ehara

Ryuko Mizukami
Tanigawa Yoko

Mitsue Komiya

Seiichirō Kameishi
Shiro Okamoto

Rinichi Yamamoto
Kappei Matsumoto
Tanigawa Hiroshi

Takashi Kanda

Ken Sudo
Junji Masuda
Koji Sahara
Garrison Chief Mikami
Harold Conway
Washington Broadcast Station Chief
Yuji Kitamine
Tadashi Minamikawa

Kōji Sekiyama

Gōzō Sōma

Akikane Sawa
Masazumi Okabe
Shirō Ōki
Jo Moriya
Kosaku Okano
Kenji Todoroki
Kenji Miyako
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Crew
Directing
- Junya SatōAssistant Director
- Koji OtaDirector
Writing
- Akihiro WatanabeOriginal Concept
- Shin MoritaScreenplay
Camera
- Shizuka FujiiDirector of Photography
Sound
- Masanobu OtaniSound Recordist
- Hajime KaburagiOriginal Music Composer
Art
- Keigo ShimozawaArt Direction
Crew
- Nobuo YajimaSpecial Effects
Lighting
- Toshiaki MorisawaLighting Technician