출연진
캠벨 스콧
Self - Narrator (voice)
Boyd Gaines
Chairman Gray (voice)
Daniel Gerroll
Colonel Pash
마이클 스툴바그
Edward Teller
Ellen Katz
The Stenographer
Michael Cumpsty
Harold Agnew
Self
Jeremy Bernstein
Self
Freeman Dyson
Self
Richard Rhodes
Self
Martin J. Sherwin
Self
Joseph McCarthy
Self (archive footage)
J. 로버트 오펜하이머
Self (archive footage)
데이비드 스트러세언
J. Robert Oppenheimer
Herbert York
Self
Marvin L. Goldberger
Self
Priscilla McMillan
Self
Robert Christy
Self
Roy Glauber
Self
해리 S. 트루먼
Self (Archive Footage)
J. Edgar Hoover
Self (archive footage)