Character Name : Lt. John F, Kennedy

Original Name : Cliff Robertson

Gender : Male

Character Name : Ensign Leonard J. Thom

Original Name : Ty Hardin

Gender : Male

Character Name : Commander C.R. Ritchie

Original Name : James Gregory

Gender : Male

Character Name : Ensign George 'Barney' Ross

Original Name : Robert Culp

Gender : Male

Character Name : Lt. Alvin Cluster

Original Name : Grant Williams

Gender : Male

Character Name : Yeoman Rogers

Original Name : Lew Gallo

Gender : Male

Character Name : Benjamin Kevu

Original Name : Errol John

Gender : Male

Character Name : Lt. Reginald Evans

Original Name : Michael Pate

Gender : Male

Character Name : Charles 'Bucky' Harris

Original Name : Robert Blake

Gender : Male

Character Name : Edgar E. Mauer

Original Name : Biff Elliot

Gender : Male

Character Name : Edmund Drewitch

Original Name : Norman Fell

Gender : Male

Character Name : Pat McMahon

Original Name : James McCallion

Gender : Male

Character Name : Harold Mamey

Original Name : Joseph Gallison

Gender : Male

Character Name : Gerald Zinser

Original Name : William Douglas

Gender : Male

Character Name : Raymond Starkey

Original Name : Sam Gilman

Gender : Male

Character Name : Leon Drawdy

Original Name : Clyde Howdy

Gender : Male

Character Name : Maurice Kowal

Original Name : Buzz Martin

Gender : Male

Character Name : Andrew Kirksey

Original Name : Sam Reese

Gender : Male

Character Name : William Johnson

Original Name : Glenn Sipes

Gender : Male

Character Name : John Maguire

Original Name : John Ward

Gender : Male

Character Name : Raymond Albert

Original Name : David Whorf

Gender : Male

Character Name : Helmsman on Japanese Destroyer (uncredited)

Original Name : George Takei

Gender : Male

Character Name : Narrator (uncredited)

Original Name : Andrew Duggan

Gender : Male

Character Name : Radioman (uncredited)

Original Name : Roger Davis

Gender : Male

Character Name : Extra (uncredited)

Original Name : Jerry Earle Kraft

Gender : Male