UFO Robot Grendizer vs. Great Mazinger
Alien invaders take over Great Mazinger who is at the entrance of a museum next to Mazinger Z as symbols of peace. Grendizer fights the evil invaders and Great Mazinger is recovered. When the Vegan empire dispatches a new general to oversee the takeover of Earth, he quickly manages to capture Koji Kabuto and, learning of Great Mazinger through interrogation, quickly commandeers it from a museum where it was kept as a symbol of peace. It is now up to Duke Fleed aboard Grendizer to stop humanity's former defender from becoming its destroyer.
Where to watch UFO Robot Grendizer vs. Great Mazinger in United States
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Click a service to open UFO Robot Grendizer vs. Great Mazinger there. Availability last verified on June 20, 2026.
About UFO Robot Grendizer vs. Great Mazinger
UFO Robot Grendizer vs. Great Mazinger is a 1976 Japanese-language animation, action and adventure film directed by Osamu Kasai. The cast is led by Kei Tomiyama, Joji Yanami, Hiroya Ishimaru. It has a runtime of 0h 24m.
UFO Robot Grendizer vs. Great Mazinger was produced by Dynamic Planning and Toei Animation and made in Japan. It was released on March 20, 1976.
- Director
- Osamu Kasai
- Writers
- Keisuke Fujikawa
- Release date
- March 20, 1976
- Original language
- Japanese
- Status
- Released
- Country
- Japan
- Production
- Dynamic Planning, Toei Animation
UFO Robot Grendizer vs. Great Mazinger cast & crew
UFO Robot Grendizer vs. Great Mazinger was directed by Osamu Kasai and written by Keisuke Fujikawa.
The cast features Kei Tomiyama as Duke Fleed / Daisuke Umon, Joji Yanami as Dr. Umon, Hiroya Ishimaru as Kouji Kabuto, Chiyoko Kawashima as Hikaru Makiba, Kazuko Sawada as Goro Makiba, and Kenichi Ogata as Blacky.
Behind the camera, it was produced by Chiaki Imada.
Is UFO Robot Grendizer vs. Great Mazinger worth watching?
At 0h 24m, it's an easy, time-light watch.
If you enjoy animation, action, and adventure, UFO Robot Grendizer vs. Great Mazinger is worth a place on your watchlist.
How and where to watch UFO Robot Grendizer vs. Great Mazinger
UFO Robot Grendizer vs. Great Mazinger isn't currently available on major streaming services in United States. We track availability continuously — add it to your watchlist and we'll keep an eye out.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
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Cast of UFO Robot Grendizer vs. Great Mazinger
Kei Tomiyama
Duke Fleed / Daisuke Umon
Joji Yanami
Dr. Umon
Hiroya Ishimaru
Kouji Kabuto
Chiyoko Kawashima
Hikaru Makiba
Kazuko Sawada
Goro Makiba
Kenichi Ogata
Blacky
Kosei Tomita
Gandal Shirei
Keiichi Noda
Tsurugi Tetsuya
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UFO Robot Grendizer vs. Great Mazinger — FAQs
▸Where can I watch UFO Robot Grendizer vs. Great Mazinger in United States?
UFO Robot Grendizer vs. Great Mazinger is not currently available on major streaming services in United States. Availability changes often — check back soon.
▸What language is UFO Robot Grendizer vs. Great Mazinger in?
UFO Robot Grendizer vs. Great Mazinger is originally in Japanese. Subtitle and dub options vary by streaming service.
▸How long is UFO Robot Grendizer vs. Great Mazinger?
UFO Robot Grendizer vs. Great Mazinger runs 0 hours 24 minutes (24 minutes).
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