Character Name : Self (archive footage)

Original Name : J. Robert Oppenheimer

Gender : Male

Character Name : Self - Daughter of Los Alamos Scientist

Original Name : Ellen Bradbury Reid

Gender : Female

Character Name : Self - Writer / Director, "Oppenheimer"

Original Name : Christopher Nolan

Gender : Male

Character Name : Self - Filmmaker, "The Day After Trinity"

Original Name : Jon Else

Gender : Male

Character Name : Self - Co-Author, "American Prometheus"

Original Name : Kai Bird

Gender : Male

Character Name : Self - Science Educator

Original Name : Bill Nye

Gender : Male

Character Name : Self - Author, "The Making of the Atomic Bomb"

Original Name : Richard Rhodes

Gender : Male

Character Name : Self - Nuclear Security Expert

Original Name : Mareena Robinson Snowden

Gender : Female

Character Name : Self - Senior Historian, Los Alamos National Laboratory

Original Name : Alan B. Carr

Gender : Male

Character Name : Self - Author, "Brotherhood of the Bomb"

Original Name : Gregg Herken

Gender : Male

Character Name : Self - Author, "109 East Palace"

Original Name : Jennet Conant

Gender : Female

Character Name : Self - History Professor, Columbia University

Original Name : David Eisenbach

Gender : Male

Character Name : Self - Nuclear Historian

Original Name : Alex Wellerstein

Gender : Male

Character Name : Self - Co-Author, "American Prometheus" (voice)

Original Name : Martin J. Sherwin

Gender : Male

Character Name : Self - Theoretical Physicist

Original Name : Michio Kaku

Gender : Male

Character Name : Self - Director, Manhattan Project (voice) (archive sound)

Original Name : Leslie Groves

Gender : Male

Character Name : Self - Grandson

Original Name : Charles Oppenheimer

Gender : Male

Character Name : Self - Theoretical Physicist (voice) (archive sound)

Original Name : Robert Christy

Gender : Male

Character Name : Self - Author, "Racing for the Bomb"

Original Name : Robert S. Norris

Gender : Male

Character Name : Self - Hiroshima Survivor (Age 10)

Original Name : Hideko Tamura

Gender : Female

Character Name : Self - Scientist, Manhattan Project (voice) (archive sound)

Original Name : Roy Glauber

Gender : Male

Character Name : Self - Theoretical Physicist (archive footage)

Original Name : Edward Teller

Gender : Male

Character Name : Self (archive footage)

Original Name : Eleanor Roosevelt

Gender : Female

Character Name : Self (voice) (archive sound)

Original Name : Judy Woodruff

Gender : Female

Character Name : Self (archive footage)

Original Name : Adolf Hitler

Gender : Male

Character Name : Self (archive footage)

Original Name : Vladimir Putin

Gender : Male

Character Name : Self (archive footage)

Original Name : 习近平

Gender : Male

Character Name : Self (archive footage)

Original Name : Albert Einstein

Gender : Male