Top Billed Cast

1. 

   Glenn Ford

   President Richardson

2. 

   Robert Vaughn

   Senator Barkley

3. 

   Masao Kusakari

   Doctor Shûzô Yoshizumi

4. 

   Yumi Takigawa

   Asami Noriko

5. 

   Henry Silva

   General Garland

6. 

   Bo Svenson

   Major Carter

7. 

   Stephanie Faulkner

   Sarah Baker

8. 

   Stuart Gillard

   Doctor Ed Meyer

9. 

   Cec Linder

   Doctor Latour

10. 

    Chuck Connors

    Captain McCloud - HMS Nereid

11. 

    George Kennedy

    Admiral Conway

12. 

    Olivia Hussey

    Marit

13. 

    Edward James Olmos

    Captain Lopez

14. 

    Isao Natsuyagi

    Commander Nakanishi

15. 

    Julie Khaner

    Secretary - Palmer Station

16. 

    George Touliatos

    Col. Rankin

17. 

    Sonny Chiba

    Dr. Yamauchi

18. 

    Tsunehiko Watase

    Yasuo Tatsuno

19. 

    Kensaku Morita

    Ryûji Sanazawa

20. 

    Toshiyuki Nagashima

    Akimasa Matsuo

21. 

    Nicholas Campbell

    Radio Operator - Palmer Station

22. 

    Chris Wiggins

    Dr. Borodinov

23. 

    Eve Crawford

    Dr. Irma Ollich

24. 

    John Bayliss

    Major King

25. 

    John Rutter

    Sailor #1 - HMS Nereid

26. 

    Alf Humphreys

    Sailor #2 - HMS Nereid

27. 

    Michael Tough

    Young Sailor - HMS Nereid

28. 

    Ken Ogata

    Prof. Tsuchiya

29. 

    William Binney

    White House Aide Simmons

30. 

    Stuart Gillard

    Dr. Ed Meyer

31. 

    Colin Fox

    Spy Z

32. 

    Ken Pogue

    Dr. Krause

33. 

    Alberta Watson

    Litha (uncredited)

34. 

    Danielle Schneider

    Secretary - Palmer Station

35. 

    Mitsuko Oka

    Tatsuno Yoshiko

36. 

    Takashi Noguchi

    Doctor's Assistant

37. 

    Nenji Kobayashi

    Doctor's Assistant #2

38. 

    Haruki Kadokawa

    Crew Member

39. 

    Chū Takatsuki

    Crew Member

40. 

    Takeshige Hatanaka

    Crew Member

41. 

    Chikara Gonoue

    Crew Member

42. 

    Danielle Schneider

    American Antarctic Crew Member