Réalisation: Hugo Grimaldi
La version américaine modifiée de Godzilla Raids Again. Initialement prévu pour être connu sous le nom de "The Volcano Monsters", le film est finalement sorti sous le nom de "Gigantis".
小泉博
Tsukioka
若山セツ子
Hidemi
Minoru Chiaki
Kobayashi (as Mindru Chiaki)
Takashi Shimura
Dr. Yamane
清水将夫
Dr. Tadokoro
恩田清二郎
Commander (as Serjiro Onda)
澤村宗之助
Shibeki
Yoshio Tsuchiya
Tajima
木匠マユリ
Radio Operator
Yukio Kasama
Father (as Yokio Kasama)
笈川武夫
Police Chief
山田巳之助
Chief of Civil Defense (uncredited)
山本廉
Ikeda (uncredited)
大友伸
Convict Leader (uncredited)
大村千吉
Convict (uncredited)
Haruo Nakajima
Gigantis (uncredited)
手塚 勝巳
Angurus (uncredited)
Shōichi Hirose
Convict (uncredited)
Keye Luke
Tsukioka / Policeman (voice) (uncredited)
Aya Oyama
Hidemi (voice) (uncredited)
