Actors

Actor

Self - Narrator (voice)

Directing

Interviewer

J. Robert Oppenheimer

Actor

Self (archive footage)

Actor

Self

Frank Oppenheimer

Actor

Self

Haakon Chevalier

Actor

Self

Actor

Self

Actor

Self

Stirling Colgate

Actor

Self

Actor

Self

Actor

Self

Francis Fergusson

Actor

Self

Actor

Self (archive footage)

Elizabeth Ingram

Actor

Self

Actor

Self

Actor

Self

Joseph McCarthy

Actor

Self (archive footage)

Dorothy McKibben

Actor

Self

Actor

Self

Isidor Isaac Rabi

Actor

Self