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