The story revolves around Duke Fleed who is a survivor of the Vega Star, raised by Dr. Umon as his adoptive son, and known as Daisuke Umon on Earth. Years after his arrival, he's faced with the threat of King Vega and his army, who want to conquer the Earth. With his friends Koji and Hikaru (and later his kid sister Maria Grace), Duke decides to fight back using his best weapon, the almighty Grendizer.
Genre: Action & Adventure, Animation, Sci-Fi & Fantasy
Stars: Kei Tomiyama, Hiroya Ishimaru, Joji Yanami, Chiyoko Kawashima, Kosei Tomita, Kazuko Sawada
Crew: Chiaki Imada, Keisuke Fujikawa, Go Nagai, Mitsura Majima, Shozo Uehara
Country: JP
Studio: Fuji TV
Runtime: 25:14 minutes
Quality: HD
First air date: Oct 05, 1975
Last air date: Feb 27, 1977
Episode: 74 Episode
Season: 1 Season
IMDb: 3.5