On screen
Cast
26 credited performers
Campbell Scott
Self - Narrator (voice)
Boyd Gaines
Chairman Gray (voice)
Daniel Gerroll
Colonel Pash
Michael Stuhlbarg
Edward Teller
Artwork unavailable
Ellen Katz
The Stenographer
Michael Cumpsty
Character not listed
Artwork unavailable
Harold Agnew
Self
Artwork unavailable
Jeremy Bernstein
Self
Freeman Dyson
Self
Artwork unavailable
Richard Rhodes
Self
Martin J. Sherwin
Self
Joseph McCarthy
Self (archive footage)
J. Robert Oppenheimer
Self (archive footage)
David Strathairn
J. Robert Oppenheimer
Artwork unavailable
Herbert York
Self
Artwork unavailable
Marvin L. Goldberger
Self
Artwork unavailable
Priscilla McMillan
Self
Artwork unavailable
Robert Christy
Self
Artwork unavailable
Roy Glauber
Self
Harry S. Truman
Self (Archive Footage)
J. Edgar Hoover
Self (archive footage)
Lewis Strauss
Self (archive footage)
Dwight D. Eisenhower
Self (archive footage)
Eleanor Roosevelt
Self (archive footage)
Edward Teller
Self (archive footage)
Lyndon B. Johnson
Self (archive footage)