Furankenshutain no kaijû: Sanda tai Gaira 1966

Gaira, a humanoid sea beast spawned from the discarded cells of Frankenstein's monster, attacks the shores of Tokyo. While the Japanese military prepares to take action, Gaira's Gargantua brother, Sanda, descends from the mountains to defend his kin. A battle between good and evil ensues, leaving brothers divided and a city in ruins.

Cast:

Russ Tamblyn
Dr. Paul Stewart 

Kumi Mizuno
Akemi 

Kenji Sahara
Dr. Yuzo Majida 

Nobuo Nakamura
Dr. Kita 

Jun Tazaki
General 

Hisaya Ito
Police Chief 

• Katango
• The War of the Gargantuas
• Ο Πόλεμος των Γκαργκαντούας
• Τέρατα από Χαμένους Πλανήτες
• フランケンシュタインの怪獣 サンダ対ガイラ