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.
富山敬
as Duke Fleed / Daisuke Umon
石丸博也
as Koji Kabuto
八奈見乗児
as Genzo Umon / Great King Vega
川島千代子
as Hikaru Makiba
富田耕生
as Danbei Makiba / General Gandal / Nuke / Whiter
沢田和猫
as Goro Makiba / Lady Gandal
吉田理保子
as Grace Maria Fleed / Commander Marine
銀河万丈
as Science Minister Zuril
緒方賢一
as Blaki / Bunta Arano
キートン山田
as Akira Hayashi
津田延代
as Hara Arano
大竹 宏
as Boss
Episode 1
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
Episode 11
Episode 12
Episode 13
Episode 14
Episode 15
Episode 16
Episode 17
Episode 18
Episode 19
Episode 20
Episode 21
Episode 22
Episode 23
Episode 24
Episode 25
Episode 26
Episode 27
Episode 28
Episode 29
Episode 30
Episode 31
Episode 32
Episode 33
Episode 34
Episode 35
Episode 36
Episode 37
Episode 38
Episode 39
Episode 40
Episode 41
Episode 42
Episode 43
Episode 44
Episode 45
Episode 46
Episode 47
Episode 48
Episode 49
Episode 50
Episode 51
Episode 52
Episode 53
Episode 54
Episode 55
Episode 56
Episode 57
Episode 58
Episode 59
Episode 60
Episode 61
Episode 62
Episode 63
Episode 64
Episode 65
Episode 66
Episode 67
Episode 68
Episode 69
Episode 70
Episode 71
Episode 72
Episode 73
Episode 74
