Like Father, Like Son
The son of Zouril,Zuril Jr. wants to fight Grendizer but Zouril doesn't want him to. Zuril Jr. sacrifice himself for his father in the end.

Cast
Kei TomiyamaDuke Fleed / Daisuke Umon (voice)
Hiroya IshimaruKoji Kabuto (voice)
Joji YanamiGenzo Umon / Great King Vega (voice)
Chiyoko KawashimaHikaru Makiba (voice)
Kosei TomitaDanbei Makiba / General Gandal / Nuke / Whiter (voice)
Kazuko SawadaGoro Makiba / Lady Gandal (voice)
Rihoko YoshidaGrace Maria Fleed / Commander Marine (voice)
Banjo GingaScience Minister Zuril (voice)
Kenichi OgataBlaki / Bunta Arano (voice)
Keaton YamadaAkira Hayashi (voice)UFO Robot Grendizer on tvt

