On screen
Cast
84 credited performers
Sam Waterston
Robert Oppenheimer
John Carson
Narrator
Jana Shelden
Kitty Oppenheimer
Christopher Muncke
General Kenneth Nichols
Edward Hardwicke
Enrico Fermi
David Suchet
Edward Teller
Peter Whitman
Robert Serber
Manning Redwood
General Leslie Groves
Matthew Guinness
Hans Bethe
John Morton
Robert Wilson
Bob Sherman
Ernest Lawrence
Garrick Hagon
Frank Oppenheimer
Barry Dennen
Isidor Rabi
Liza Ross
Jacky Oppenheimer
Kate Harper
Jean Tatlock
Erica Stevens
Charlotte Serber
Peter Marinker
Haakon Chevalier
Ron Berglas
John Manley
Blain Fairman
Robert Bacher
Anthony Forrest
Rossi Lomanitz
Christopher Malcolm
Steve Nelson
William Hootkins
FBI Agent
John Cassady
FBI Agent
David Baxt
Colonel John Lansdale
Rosemary Faith
Mitzi Teller
Sarah Brackett
Priscilla Duffield
Billy J. Mitchell
Captain 'Deke' Parsons
Colin Bennett
Seth Neddermeyer
Milton Johns
George Kistiakowsky
Douglas Lambert
Kenneth Bainbridge
Nigel Anthony
Scientist
Peter Banks
Joseph Volpe
Phil Brown
Lewis Strauss
Daniel Foley
Joseph Weinberg
James Smith
Dr Harrison
Michael Ryan
Student
Carl Haugland
Student
Raymond Marlowe
Businessman
Ed Devereaux
General Wilhelm Styer
David Oliver
Emil Konopinski
Alexander Davion
Arthur Compton
Gabor Vernon
Leo Szilard
Colette Hiller
Barbara Chevalier
Robert Henderson
Scientist
Shane Rimmer
Ed Condon
Pat Starr
Alice Smith
Marc Smith
Lieutenant Colonel Boris Pash
John Orchard
Sergeant
Dave Hill
James Tuck
Albert Welling
Klaus Fuchs
Tony Sibbald
Captain
Matt Zimmerman
MC
Jay Benedict
SED
Gerramy Quarto
SED
Roger Frazier
Drill Sergeant
Geri Peterson
Woman
Alexander Knox
Henry Stimson
Ed Bishop
General Tom Farrell
Michael John Paliotti
Sam Allison
Jeff Harding
MP
Don Fellows
Army Chief
Robert MacLeod
Navy Chief
Douglas W. Iles
Air Force Chief
Bob Sessions
Thomas Finletter
Robert Robinson
Senator Knowland
Stephen Turner
David Griggs
Ray Charleson
William Borden
Raymond Thompson
Francis Cotter
Audrey Hamilton
Carol Chevalier
James Waterston
Peter Oppenheimer
Elizabeth Giles
Toni Oppenheimer
Declan Mulholland
FBI Agent
Jerry Harte
JCAE Counsel
Robert O'Neil
GAC Committee Member
Peter Carlisle
HUAC Counsel
Alan Westbrook
Reporter
James Berwick
Air Force General
Michael Fitzpatrick
Congressman
George Gabriel
Harold Green
Stuart Milligan
Herbert Marks
James Maxwell
Lloyd Garrison
Philip O'Brien
Roger Robb
Seymour Green
Gordon Gray
Robert Arden
John McCloy