Cast 25

1. 

   Cliff Robertson

   Lt. John F, Kennedy

2. 

   Ty Hardin

   Ensign Leonard J. Thom

3. 

   James Gregory

   Commander C.R. Ritchie

4. 

   Robert Culp

   Ensign George 'Barney' Ross

5. 

   Grant Williams

   Lt. Alvin Cluster

6. 

   Lew Gallo

   Yeoman Rogers

7. 

   Errol John

   Benjamin Kevu

8. 

   Michael Pate

   Lt. Reginald Evans

9. 

   Robert Blake

   Charles 'Bucky' Harris

10. 

    Biff Elliot

    Edgar E. Mauer

11. 

    Norman Fell

    Edmund Drewitch

12. 

    James McCallion

    Pat McMahon

13. 

    Joseph Gallison

    Harold Mamey

14. William Douglas

    Gerald Zinser

15. 

    Sam Gilman

    Raymond Starkey

16. Clyde Howdy

    Leon Drawdy

17. 

    Buzz Martin

    Maurice Kowal

18. Sam Reese

    Andrew Kirksey

19. Glenn Sipes

    William Johnson

20. John Ward

    John Maguire

21. David Whorf

    Raymond Albert

22. 

    George Takei

    Helmsman on Japanese Destroyer (uncredited)

23. 

    Andrew Duggan

    Narrator (uncredited)

24. 

    Roger Davis

    Radioman (uncredited)

25. Jerry Earle Kraft

    Extra (uncredited)

Crew 18