Burt Lancaster
— Self - Host / Narrator
Shigeko Sasamori
— Self - Hiroshima survivor
Gene R. LaRocque
— Self - Rear Admiral U.S.N. (Ret.) (archive footage)
Kosta Tsipis
— Self - PhD. (archive footage)
Victor W. Sidel
— Self - M.D. (archive footage)
John Kenneth Galbraith
— Self - PhD. (archive footage)
Richard G. Saxon
— Self - M.D. (archive footage)
Judd Marmor
— Self - M.D. (archive footage)
H. Jack Geiger
— Self - M.D. (archive footage)
Helen Caldicott
— Self - M.B., B.S. (archive footage)
Dwight D. Eisenhower
— Self - President of the United States (archive footage)