Cast 66

  1. Brian Dennehy

    Brian Dennehy

    Gen. Leslie Groves

  2. David Strathairn

    David Strathairn

    J. Robert Oppenheimer

  3. Michael Tucker

    Michael Tucker

    Leo Szilard

  4. Hume Cronyn

    Hume Cronyn

    James F. Byrnes

  5. Richard Dysart

    Richard Dysart

    President Harry S. Truman

  6. Hal Holbrook

    Hal Holbrook

    Gen. George Marshall

  7. Barnard Hughes

    Barnard Hughes

    Henry Stimson

  8. John McMartin

    John McMartin

    Dr. Arthur Compton

  9. David Ogden Stiers

    David Ogden Stiers

    Franklin D. Roosevelt

  10. Anne Twomey

    Anne Twomey

    Kitty Oppenheimer

  11. Lawrence Dane
  12. Ron Frazier

    Colonel Pash

  13. Olek Krupa

    Olek Krupa

    Edward Teller

  14. Bernie McInerney
  15. Ken Pogue

    Ken Pogue

    Dwight D. Eisenhower

  16. Gary Reineke

    Gary Reineke

    Groves's Commanding Officer

  17. Alan Scarfe
  18. John Seitz

    John Seitz

    Ralph A. Bard

  19. Tony Shalhoub

    Tony Shalhoub

    Enrico Fermi

  20. Ester Spitz

    Trude Weiss

  21. Ron White

    Ron White

    Colonel Nichols

  22. Stephan Balint

    Eugen Wigner

  23. Peter Boretski

    Albert Einstein

  24. Patrick Breen

    Patrick Breen

    Richard Feynman

  25. Vlasta Vrana

    Vlasta Vrana

    Hans Bethe

  26. George Popovich

    Samuel Goudsmit

  27. Lorne Brass

    Lorne Brass

    Klaus Fuchs

  28. Michael Sinelnikoff

    Michael Sinelnikoff

    Lord Rutherford

  29. Graham Haley

    Haakon Chevalier

  30. Kliment Denchev

    Michael Polanyi

  31. Diana Fajrajsl

    Ilse Polanyi

  32. Timothy Webber

    Timothy Webber

    Colonel Lansdale

  33. Harry Strandjofski

    Harry Strandjofski

    Robert Wilson

  34. Lia Sargent

    Lia Sargent

    Mrs. Wisnovsky

  35. David Gow

    David Gow

    Jack Wisnovsky

  36. Isabelle Mejias

    Mrs. Trowbridge

  37. Jonathan Wise

    Jonathan Wise

    Robert Serber

  38. George R. Robertson
  39. Dee McCafferty

    Dee McCafferty

    William 'Deke' Parsons

  40. Tom Butler

    Tom Butler

    Captain DeSilva

  41. Robert Morelli

    T. O. Jones

  42. Jon Baggaley

    James Tuck

  43. David Bolt

    Harry Gold

  44. David Ferry

    David Ferry

    Army Major

  45. Heinar Pillar

    Fleischmann

  46. François Klanfer

    Haagen Kistiakowski

  47. Joel Miller

    George Kistiakowski

  48. Michael J. Reynolds

    Michael J. Reynolds

    Kenneth Bainbridge

  49. Ed McGibbon

    William D. Leahy

  50. Nicholas Kilbertus

    Paul Tibbets

  51. Joe Cazalet

    Air Force Guard

  52. Scott Thomson

    Scott Thomson

    Chemist

  53. Bob Clout

    Alfred MacCormack

  54. Roland Hewgill

    Army General

  55. Stan Gibbons

    John J. McCloy

  56. Terrence Labrosse

    Allan Dulles

  57. Delise Alison

    London Pedestrian

  58. Alex Guard

    British Jr. Officer

  59. Philip Spensley

    British Sr. Officer

  60. Frederick Neumann

    Alexander Sachs

  61. Norris Domingue

    General Pa Watson

  62. Steve Barry

    Los Alamo Scientist (uncredited)

  63. Arthur Holden

    Arthur Holden

    Scientist (uncredited)

  64. Romano Orzari

    Romano Orzari

    Leo Szilard's Prime Scientist (uncredited)

Crew 25

Art

  1. Guy Lalande

    Art Direction

  2. Curtis A. Schnell

    Production Design

Camera

  1. Kees Van Oostrum

    Director of Photography

Costume & Makeup

  1. Ronald J. Rolfe

    Assistant Hairstylist

  2. Serge Morache

    Assistant Hairstylist

  3. Renée April

    Costume Design

  4. Benjamin Robin

    Hairstylist

  5. Gillian Chandler

    Key Makeup Artist

  6. Jocelyne Bellemare

    Jocelyne Bellemare

    Makeup Department Head

Directing

  1. Joseph Sargent

    Joseph Sargent

    Director

  2. Michael A. Williams

    First Assistant Director

  3. Sean Dwyer

    Second Assistant Director

  4. Normand Bourgie

    Third Assistant Director

  5. Sylvain Arseneault

    Third Assistant Director

Editing

  1. Debra Karen

    Editor

Production

  1. Ken Gord

    Executive In Charge Of Production

  2. Aaron Spelling

    Aaron Spelling

    Executive Producer

  3. E. Duke Vincent

    Executive Producer

  4. David W. Rintels

    Producer

  5. Norman Henry

    Production Manager

  6. François Sylvestre

    Unit Manager

  7. Josette Perrotta

    Associate Producer, Unit Production Manager

Sound

  1. Mason Daring

    Mason Daring

    Original Music Composer

Writing

  1. David W. Rintels

    Teleplay

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