The Trials of J. Robert Oppenheimer

Campbell Scott

Self - Narrator (voice)

Boyd Gaines

Chairman Gray (voice)

Daniel Gerroll

Colonel Pash

Michael Stuhlbarg

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. Robert Oppenheimer

Self (archive footage)

David Strathairn

J. Robert Oppenheimer

?

Herbert York

Self