William Devane

~ as ~

President John F. Kennedy

Ralph Bellamy

~ as ~

U.N. Ambassador Adlai Stevenson

Howard Da Silva

~ as ~

Soviet Premier Nikita Khrushchev

James Hong

~ as ~

U.N. Secretary-General U Thant

Martin Sheen

~ as ~

Attorney General Robert F. Kennedy

James T. Callahan

~ as ~

David Powers, Special Assistant to the President

Peter Canon

~ as ~

Admiral's Aide

Keene Curtis

~ as ~

John McCone, Director CIA

Charles Cyphers

~ as ~

Press Photographer

Clifford David

~ as ~

Theodore Sorensen, Special Counsel