Kouji and his friends have defeated Dr. Hell and are now enjoying a break, but suddenly a strange prophet appears and warns everyone of an oncoming danger, mechanical beasts never seen before start appearing all around the world wrecking havoc. Its up to Kouji and his Mazinger Z to stand up to this threat but it seems he is vastly outnumber and outmatched.
石丸博也
as Kōji Kabuto (voice)
田中亮一
as Tetsuya Tsurugi
沢田和猫
as Shirou Kabuto / Fish Battle-Beast Suraba
大塚周夫
as Professor Kenzou Kabuto
大竹 宏
as Boss
小林清志
as Great Dark General
八奈見乗児
as Professor Gennosuke Yumi
Saiko Egawa
as Sayaka Yumi
大竹 宏
as Dr. Sewashi
田の中勇
as Dr. Nossori/Mucha
沢田和猫
as Jaraga/Suraba
野田圭一
as Alsos
