Cast principale
William Devane
President John F. Kennedy
Ralph Bellamy
U.N. Ambassador Adlai Stevenson
Howard Da Silva
Soviet Premier Nikita Khrushchev
James Hong
U.N. Secretary-General U Thant
Martin Sheen
Attorney General Robert F. Kennedy
James T. Callahan
David Powers, Special Assistant to the President
Peter Canon
Admiral's Aide
Keene Curtis
John McCone, Director CIA