Brian Dennehy
Gen. Leslie Groves
Pemeran
Top Billed Cast
David Strathairn
J. Robert Oppenheimer
Michael Tucker
Leo Szilard
Hume Cronyn
James F. Byrnes
Richard Dysart
President Harry S. Truman
Hal Holbrook
Gen. George Marshall
Barnard Hughes
Henry Stimson
John McMartin
Dr. Arthur Compton
David Ogden Stiers
Franklin D. Roosevelt
Anne Twomey
Kitty Oppenheimer
Lawrence Dane
Ron Frazier
Colonel Pash
Olek Krupa
Edward Teller
Bernie McInerney
?
John Pielmeier
Seth