Russ Tamblyn
Dr. Paul Stewart
Kenji Sahara
Dr. Yuzo Majida
Yoshifumi Tajima
Police Officer
Kōzō Nomura
General's Aide
Tadashi Okabe
Defiant Reporter
Hideo Shibuya
Skeptical Reporter
Ikio Sawamura
Fisherman #1
Seishirō Kuno
Fisherman #2
Someshō Matsumoto
Official
Gorō Mutsumi
Dr. Paul Stewart (voice)