The War of the Gargantuas

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.

• 
  Kenji Sahara

  Dr. Yuzo Mamiya
• 
  Kumi Mizuno

  Akemi Togawa
• 
  Russ Tamblyn

  Dr. Paul Stewart
• 
  Jun Tazaki

  General Hashimoto
• 
  Kipp Hamilton

  Singer
• 
  Yoshibumi Tajima

  Officer Hirai
• 
  Nobuo Nakamura

  Professor Kita
• 
  Hisaya Ito

  Chief Izumida
• 
  Nadao Kirino

  Lt. Col. Kazama
• 
  Ren Yamamoto

  Saburo Kameda