Cast
Brian Dennehy. Brian Dennehy was 50 in Day One as 'Gen. Leslie Groves'.
Birthday: Sat, Jul 09 1938 –
Died: Wed, Apr 15 2020
David Strathairn. David Strathairn was 40 in Day One as 'J. Robert Oppenheimer'.
Birthday: Wed, Jan 26 1949
Michael Tucker. Michael Tucker was 44 in Day One as 'Leo Szilard'.
Birthday: Tue, Feb 06 1945
Hume Cronyn. Hume Cronyn was 77 in Day One as 'James F. Byrnes'.
Birthday: Tue, Jul 18 1911 –
Died: Sun, Jun 15 2003
Richard Dysart. Richard Dysart was 60 in Day One as 'President Harry S. Truman'.
Birthday: Sat, Mar 30 1929 –
Died: Sun, Apr 05 2015
Hal Holbrook. Hal Holbrook was 64 in Day One as 'Gen. George Marshall'.
Birthday: Tue, Feb 17 1925 –
Died: Sat, Jan 23 2021
Barnard Hughes. Barnard Hughes was 73 in Day One as 'Henry Stimson'.
Birthday: Fri, Jul 16 1915 –
Died: Mon, Jul 10 2006
John McMartin. John McMartin was 59 in Day One as 'Dr. Arthur Compton'.
Birthday: Wed, Aug 21 1929 –
Died: Wed, Jul 06 2016
David Ogden Stiers. David Ogden Stiers was 46 in Day One as 'Franklin D. Roosevelt'.
Birthday: Sat, Oct 31 1942 –
Died: Sat, Mar 03 2018
Anne Twomey. Anne Twomey was 37 in Day One as 'Kitty Oppenheimer'.
Birthday: Thu, Jun 07 1951
Lawrence Dane. Lawrence Dane was 52 in Day One Birthday: Sat, Apr 03 1937 –
Died: Mon, Mar 21 2022
Ron Frazier. Ron Frazier was 49 in Day One as 'Colonel Pash'.
Birthday: Sun, Dec 10 1939 –
Died: Sun, Dec 21 2003
Olek Krupa. Olek Krupa was 42 in Day One as 'Edward Teller'.
Birthday: Tue, Mar 18 1947
John Pielmeier. John Pielmeier was 40 in Day One as 'Seth'.
Birthday: Wed, Feb 23 1949
Ken Pogue. Ken Pogue was 54 in Day One as 'Dwight D. Eisenhower'.
Birthday: Thu, Jul 26 1934 –
Died: Tue, Dec 15 2015
Gary Reineke. Gary Reineke was 48 in Day One as 'Groves's Commanding Officer'.
Birthday: Mon, May 20 1940 –
Died: Mon, Sep 23 2024
Alan Scarfe. Alan Scarfe was 42 in Day One Birthday: Sat, Jun 08 1946 –
Died: Sun, Apr 28 2024
John Seitz. John Seitz was 51 in Day One as 'Ralph A. Bard'.
Birthday: Tue, Nov 16 1937 –
Died: Mon, Jul 04 2005
Tony Shalhoub. Tony Shalhoub was 35 in Day One as 'Enrico Fermi'.
Birthday: Fri, Oct 09 1953
Ester Spitz. Ester Spitz was >> in Day One as 'Trude Weiss'.
Birthday: Unknown Birthday
Ron White. Ron White was 35 in Day One as 'Colonel Nichols'.
Birthday: Tue, Jun 09 1953 –
Died: Wed, Apr 04 2018
Stephan Balint. Stephan Balint was >> in Day One as 'Eugen Wigner'.
Birthday: Unknown Birthday
Peter Boretski. Peter Boretski was >> in Day One as 'Albert Einstein'.
Birthday: Unknown Birthday –
Died: Wed, Sep 05 2001
Patrick Breen. Patrick Breen was 28 in Day One as 'Richard Feynman'.
Birthday: Wed, Oct 26 1960
Vlasta Vrana. Vlasta Vrana was 39 in Day One as 'Hans Bethe'.
Birthday: Sun, Jan 01 1950
George Popovich. George Popovich was >> in Day One as 'Samuel Goudsmit'.
Birthday: Unknown Birthday
Lorne Brass. Lorne Brass was 30 in Day One as 'Klaus Fuchs'.
Birthday: Thu, Mar 26 1959
Michael Sinelnikoff. Michael Sinelnikoff was 60 in Day One as 'Lord Rutherford'.
Birthday: Wed, Aug 01 1928
Graham Haley. Graham Haley was >> in Day One as 'Haakon Chevalier'.
Birthday: Unknown Birthday
Kliment Denchev. Kliment Denchev was 49 in Day One as 'Michael Polanyi'.
Birthday: Fri, May 26 1939 –
Died: Sun, Mar 29 2009
Diana Fajrajsl. Diana Fajrajsl was >> in Day One as 'Ilse Polanyi'.
Birthday: Unknown Birthday
Timothy Webber. Timothy Webber was >> in Day One as 'Colonel Lansdale'.
Birthday: Unknown Birthday
Harry Standjofski. Harry Standjofski was 29 in Day One as 'Robert Wilson'.
Birthday: Fri, May 22 1959 –
Died: Fri, Jul 18 2025
Lia Sargent. Lia Sargent was 32 in Day One as 'Mrs. Wisnovsky'.
Birthday: Wed, Feb 20 1957
David Gow. David Gow was >> in Day One as 'Jack Wisnovsky'.
Birthday: Unknown Birthday
Michael Farrell. Michael Farrell was >> in Day One as 'Shapp'.
Birthday: Unknown Birthday
Isabelle Mejias. Isabelle Mejias was 27 in Day One as 'Mrs. Trowbridge'.
Birthday: Sat, Nov 04 1961
Jonathan Wise. Jonathan Wise was >> in Day One as 'Robert Serber'.
Birthday: Unknown Birthday
George R. Robertson. George R. Robertson was 56 in Day One as 'Ed Condon'.
Birthday: Sun, Jan 01 1933 –
Died: Sun, Jan 29 2023
Dee McCafferty. Dee McCafferty was >> in Day One as 'William 'Deke' Parsons'.
Birthday: Unknown Birthday
Tom Butler. Tom Butler was 38 in Day One as 'Captain DeSilva'.
Birthday: Thu, Feb 01 1951
Robert Morelli. Robert Morelli was >> in Day One as 'T. O. Jones'.
Birthday: Unknown Birthday
Jon Baggaley. Jon Baggaley was >> in Day One as 'James Tuck'.
Birthday: Unknown Birthday
David Bolt. David Bolt was 44 in Day One as 'Harry Gold'.
Birthday: Sat, May 20 1944 –
Died: Sun, Oct 04 2015
David Ferry. David Ferry was 37 in Day One as 'Army Major'.
Birthday: Thu, Sep 06 1951
Heinar Pillar. Heinar Pillar was >> in Day One as 'Fleischmann'.
Birthday: Unknown Birthday
François Klanfer. François Klanfer was >> in Day One as 'Haagen Kistiakowski'.
Birthday: Unknown Birthday
Joel Miller. Joel Miller was >> in Day One as 'George Kistiakowski'.
Birthday: Unknown Birthday
Michael J. Reynolds. Michael J. Reynolds was 49 in Day One as 'Kenneth Bainbridge'.
Birthday: Tue, Aug 15 1939 –
Died: Thu, Mar 22 2018
Ed McGibbon. Ed McGibbon was >> in Day One as 'William D. Leahy'.
Birthday: Unknown Birthday
Nicholas Kilbertus. Nicholas Kilbertus was >> in Day One as 'Paul Tibbets'.
Birthday: Unknown Birthday
Joe Cazalet. Joe Cazalet was >> in Day One as 'Air Force Guard'.
Birthday: Unknown Birthday
Scott Thomson. Scott Thomson was 31 in Day One as 'Chemist'.
Birthday: Tue, Oct 29 1957
Bob Clout. Bob Clout was 55 in Day One as 'Alfred MacCormack'.
Birthday: Sat, Jan 20 1934 –
Died: Sun, Sep 04 2011
Roland Hewgill. Roland Hewgill was 60 in Day One as 'Army General'.
Birthday: Mon, Feb 11 1929 –
Died: Mon, Nov 09 1998
Stan Gibbons. Stan Gibbons was >> in Day One as 'John J. McCloy'.
Birthday: Unknown Birthday
Terrence Labrosse. Terrence Labrosse was 56 in Day One as 'Allan Dulles'.
Birthday: Sun, Jan 01 1933 –
Died: Thu, Dec 18 2003
Delise Alison. Delise Alison was >> in Day One as 'London Pedestrian'.
Birthday: Unknown Birthday
Alex Guard. Alex Guard was >> in Day One as 'British Jr. Officer'.
Birthday: Unknown Birthday
Philip Spensley. Philip Spensley was >> in Day One as 'British Sr. Officer'.
Birthday: Unknown Birthday
Frederick Neumann. Frederick Neumann was >> in Day One as 'Alexander Sachs'.
Birthday: Unknown Birthday
Norris Domingue. Norris Domingue was 63 in Day One as 'General Pa Watson'.
Birthday: Wed, Jul 22 1925 –
Died: Sun, Apr 12 2009
Steve Barry. Steve Barry was 24 in Day One as 'Los Alamo Scientist (uncredited)'.
Birthday: Sat, Jan 30 1965
Arthur Holden. Arthur Holden was 29 in Day One as 'Scientist (uncredited)'.
Birthday: Fri, Aug 28 1959
Romano Orzari. Romano Orzari was 24 in Day One as 'Leo Szilard's Prime Scientist (uncredited)'.
Birthday: Sat, Dec 12 1964
Crew
Joseph Sargent. Joseph Sargent was 63 in Day One as 'Director'
Birthday: Wed, Jul 22 1925 –
Died: Mon, Dec 22 2014
Kees Van Oostrum. Kees Van Oostrum was 35 in Day One as 'Director of Photography'
Birthday: Sun, Jul 05 1953
Sylvain Arseneault. Sylvain Arseneault was >> in Day One as 'Third Assistant Director'
Birthday: Unknown Birthday
Normand Bourgie. Normand Bourgie was >> in Day One as 'Third Assistant Director'
Birthday: Unknown Birthday
Sean Dwyer. Sean Dwyer was >> in Day One as 'Second Assistant Director'
Birthday: Unknown Birthday
Michael A. Williams. Michael A. Williams was >> in Day One as 'First Assistant Director'
Birthday: Unknown Birthday
Josette Perrotta. Josette Perrotta was >> in Day One as 'Associate Producer, Unit Production Manager'
Birthday: Unknown Birthday
David W. Rintels. David W. Rintels was >> in Day One as 'Teleplay, Producer'
Birthday: Unknown Birthday
Aaron Spelling. Aaron Spelling was 66 in Day One as 'Executive Producer'
Birthday: Sun, Apr 22 1923 –
Died: Fri, Jun 23 2006
E. Duke Vincent. E. Duke Vincent was 57 in Day One as 'Executive Producer'
Birthday: Wed, Feb 10 1932 –
Died: Sat, Feb 10 2024
Debra Karen. Debra Karen was >> in Day One as 'Editor'
Birthday: Unknown Birthday
Mason Daring. Mason Daring was 39 in Day One as 'Original Music Composer'
Birthday: Wed, Sep 21 1949
Curtis A. Schnell. Curtis A. Schnell was >> in Day One as 'Production Design'
Birthday: Unknown Birthday
Renée April. Renée April was >> in Day One as 'Costume Design'
Birthday: Unknown Birthday
Benjamin Robin. Benjamin Robin was >> in Day One as 'Hairstylist'
Birthday: Unknown Birthday
Ronald J. Rolfe. Ronald J. Rolfe was >> in Day One as 'Assistant Hairstylist'
Birthday: Unknown Birthday
Norman Henry. Norman Henry was >> in Day One as 'Production Manager'
Birthday: Unknown Birthday
Gillian Chandler. Gillian Chandler was >> in Day One as 'Key Makeup Artist'
Birthday: Unknown Birthday
Ken Gord. Ken Gord was >> in Day One as 'Executive In Charge Of Production'
Birthday: Unknown Birthday
François Sylvestre. François Sylvestre was >> in Day One as 'Unit Manager'
Birthday: Unknown Birthday
Jocelyne Bellemare. Jocelyne Bellemare was >> in Day One as 'Makeup Department Head'
Birthday: Unknown Birthday
Peter Wyden. Peter Wyden was >> in Day One as 'Book'
Birthday: Unknown Birthday
Serge Morache. Serge Morache was 26 in Day One as 'Assistant Hairstylist'
Birthday: Thu, Oct 11 1962
Guy Lalande. Guy Lalande was >> in Day One as 'Art Direction'
Birthday: Unknown Birthday
Brian Dennehy. Brian Dennehy was 50 in Day One as 'Gen. Leslie Groves'.
David Strathairn. David Strathairn was 40 in Day One as 'J. Robert Oppenheimer'.
Hume Cronyn. Hume Cronyn was 77 in Day One as 'James F. Byrnes'.
Richard Dysart. Richard Dysart was 60 in Day One as 'President Harry S. Truman'.
Hal Holbrook. Hal Holbrook was 64 in Day One as 'Gen. George Marshall'.
Barnard Hughes. Barnard Hughes was 73 in Day One as 'Henry Stimson'.
John McMartin. John McMartin was 59 in Day One as 'Dr. Arthur Compton'.
David Ogden Stiers. David Ogden Stiers was 46 in Day One as 'Franklin D. Roosevelt'.
Ron Frazier. Ron Frazier was 49 in Day One as 'Colonel Pash'.
Ken Pogue. Ken Pogue was 54 in Day One as 'Dwight D. Eisenhower'.
Gary Reineke. Gary Reineke was 48 in Day One as 'Groves's Commanding Officer'.
John Seitz. John Seitz was 51 in Day One as 'Ralph A. Bard'.
Ron White. Ron White was 35 in Day One as 'Colonel Nichols'.
Peter Boretski. Peter Boretski was >> in Day One as 'Albert Einstein'.
Michael Sinelnikoff. Michael Sinelnikoff was 60 in Day One as 'Lord Rutherford'.
Kliment Denchev. Kliment Denchev was 49 in Day One as 'Michael Polanyi'.
Harry Standjofski. Harry Standjofski was 29 in Day One as 'Robert Wilson'.
George R. Robertson. George R. Robertson was 56 in Day One as 'Ed Condon'.
Dee McCafferty. Dee McCafferty was >> in Day One as 'William 'Deke' Parsons'.
Michael J. Reynolds. Michael J. Reynolds was 49 in Day One as 'Kenneth Bainbridge'.
Roland Hewgill. Roland Hewgill was 60 in Day One as 'Army General'.
Arthur Holden. Arthur Holden was 29 in Day One as 'Scientist (uncredited)'.
Romano Orzari. Romano Orzari was 24 in Day One as 'Leo Szilard's Prime Scientist (uncredited)'.
Joseph Sargent. Joseph Sargent was 63 in Day One as 'Director'
Aaron Spelling. Aaron Spelling was 66 in Day One as 'Executive Producer'
Ken Gord. Ken Gord was >> in Day One as 'Executive In Charge Of Production'
Jocelyne Bellemare. Jocelyne Bellemare was >> in Day One as 'Makeup Department Head'
Michael Tucker
Anne Twomey
Lawrence Dane
Olek Krupa
Bernie McInerney
Alan Scarfe
Tony Shalhoub
Patrick Breen
Vlasta Vrana
Lorne Brass
Timothy Webber
Lia Sargent
David Gow
Isabelle Mejias
Jonathan Wise
Tom Butler
David Ferry
Scott Thomson
Mason Daring