طاقم التمثيل
John Seitz
Ralph A. Bard
Ron Frazier
Colonel Pash
Alan Scarfe
توم باتلر
Captain DeSilva
Scott Thomson
Chemist
Richard Dysart
President Harry S. Truman
Lia Sargent
Mrs. Wisnovsky
Isabelle Mejias
Mrs. Trowbridge
Romano Orzari
Leo Szilard's Prime Scientist (uncredited)
Olek Krupa
Edward Teller
Hal Holbrook
Gen. George Marshall
Harry Standjofski
Robert Wilson
Michael Tucker
Leo Szilard
David Ogden Stiers
Franklin D. Roosevelt
Roland Hewgill
Army General
John McMartin
Dr. Arthur Compton
Vlasta Vrana
Hans Bethe
Dee McCafferty
William 'Deke' Parsons
هوم كرونين
James F. Byrnes
Lawrence Dane
Timothy Webber
Colonel Lansdale
Anne Twomey
Kitty Oppenheimer
Lorne Brass
Klaus Fuchs
Jonathan Wise
Robert Serber
Ken Pogue
Dwight D. Eisenhower
David Gow
Jack Wisnovsky
Michael J. Reynolds
Kenneth Bainbridge
Heinar Piller
Fleischmann
Brian Dennehy
Gen. Leslie Groves
ديفيد ستراثيرن
J. Robert Oppenheimer
Gary Reineke
Groves's Commanding Officer
Arthur Holden
Scientist (uncredited)
Patrick Breen
Richard Feynman
David Ferry
Army Major
Bernie McInerney
Barnard Hughes
Henry Stimson
توني شلهوب
Enrico Fermi
Ron White
Colonel Nichols
Michael Sinelnikoff
Lord Rutherford
George R. Robertson
Ed Condon