约翰·赫特

John Hurt

饰：Self - Narrator,

Shuntaro Hida

饰：Himself - Hiroshima Survivor

George Elsey

饰：Himself - Military Advisor

Theodore Van Kirk

饰：Himself - Navigator, Enola Gay

Akiko Takakura

饰：Herself - Hiroshima Survivor

Fred Ashworth

饰：Himself - Weaponeer, Bockscar

Russell Gackenback

饰：Himself - Navigator, Necessary Evil

Morris Jeppson

饰：Himself - Weapons Test Officer

Teruko Fujii

饰：Herself - Survivor

Kinuko Laskey

饰：Herself - Hiroshima Survivor

Takashi Tanemori

饰：Himself - Hiroshima Survivor

Shigeru Terasawa

饰：Himself - Hiroshima Witness

谢恩·里默

Shane Rimmer

饰：Byrnes

Eric Meyers

Eric Meyers

饰：Fermi

Martin McDougall

Martin McDougall

饰：Le May

蒂姆·马修斯

Tim Matthews

饰：Major Thomas Ferebee

David Nicolle

David Nicolle

饰：Carron

乔治·安东

George Anton

饰：Parsons

森尚子

Naoko Mori

饰：Shige Hiratsuka

加里·库珀

Garry Cooper

饰：Groves

Kenneth Jay

饰：Truman

艾德·毕肖普

Ed Bishop

饰：Stimson

Michael Fitzpatrick

Michael Fitzpatrick

饰：Farrell

Sachi Kimura

饰：Takakura`s friend

黑田遥

Haruka Kuroda

饰：Takakura

Lee Colley

Lee Colley

饰：Van Kirk

Ian Shaw

饰：Tibbetts

Kenji Watanabe

Kenji Watanabe

饰：Shige`s Husband

保罗·提贝兹

Paul Tibbets

饰：Himself - Pilot, Enola Gay

Noboru Akima

饰：General Anami

约翰·赫特

John Hurt

饰：自己

珍妮特·苏兹曼

Janet Suzman

饰：Kinuko Doi,

丹尼尔·本·泽努

Daniel Ben Zenou

饰：Beser

长克巳

Katsumi Chô

饰：Admiral Yonai

Frederick Ruth

饰：Robert Oppenheimer

罗杰·梅

Roger May

饰：Dr. Shuntaro Hida

Willow Nash

饰：Akiko Takakura

昭和天皇

Hirohito

饰：Self,(archive footage)

哈里·S·杜鲁门

Harry S. Truman

饰：Self,(archive footage)

Robert Austin

饰：Winston Churchill

Minako Seki

饰：Kinuko Doi

Clive Thompson

饰：George Elsey

Martin Wimbush

Martin Wimbush

饰：General Sir Alan Brooke

Frances White

饰：Teruko Fujii

罗伯特·奥本海默

J. Robert Oppenheimer

饰：Self,(archive footage)