Cast 25

1. 

   Katsuhiko Sasaki

   Biologist Akira Ichinose

2. 

   Tomoko Ai

   Katsura Mafune

3. 

   Akihiko Hirata

   Dr. Shinzô Mafune

4. 

   Katsumasa Uchida

   Jiro Murakoshi

5. 

   Gorō Mutsumi

   Mugal

6. 

   Tadao Nakamaru

   Interpol Chief Tagawa

7. Shin Roppongi

   Yûuchi Wakayama

8. Yasuko Agrawa

   Yuri Yamamoto

9. 

   Tôru Ibuki

   Tsuda (Bearded alien)

10. 

    Kenji Sahara

    Defense Force Commander

11. 

    Kotaro Tomita

    Professor Ôta

12. 

    Ikio Sawamura

    Mafune's Butler

13. 

    Masaaki Daimon

    Captain Kusakari

14. 

    Kazuo Suzuki

    Alien Henchman #1

15. Yoshio Kirishima

    Alien Henchman #2

16. Masayoshi Kikuchi

    Alien Henchman #3

17. Takuya Yuki

    Alien Henchman #4

18. Jun Nishihara

    Alien Henchman #5

19. Akinori Umezu

    Boy #1

20. Shizuko Azuma

    Old Country Lady

21. Toshihiko Furuta

    Interpol Worker

22. Takuzō Kumagai

    Defense Corp Executive

23. Toru Kawai

    Godzilla

24. Ise Mori

    Mechagodzilla

25. Tatsumi Nikamoto

    Titanosaurus

Crew 12