Name	Known for
Sam Waterston Robert Oppenheimer Robert Oppenheimer See fewer	The Killing Fields (1984)
Milton Johns George Kistiakowsky George Kistiakowsky See fewer	Star Wars: Episode V - The Empire Strikes Back (1980)
Alexander Knox Henry Stimson Henry Stimson See fewer	Wilson (1944)
Edward Hardwicke Enrico Fermi Enrico Fermi See fewer	Elizabeth (1998)
Bob Sherman Ernest Lawrence Ernest Lawrence See fewer	Hellboy (2004)
Don Fellows Army Chief Army Chief See fewer	Raiders of the Lost Ark (1981)
Robert MacLeod Navy Chief Navy Chief See fewer	Goldfinger (1964)
Douglas W. Iles Air Force Chief (as Douglas Iles) Air Force Chief (as Douglas Iles) See fewer	Superman IV: The Quest for Peace (1987)
Manning Redwood General Leslie Groves General Leslie Groves See fewer	A View to a Kill (1985)
Christopher Muncke Colonel Kenneth Nichols Colonel Kenneth Nichols See fewer	The Spy Who Loved Me (1977)
Peter Whitman Robert Serber Robert Serber See fewer	Superman II (1980)
Douglas Lambert Kenneth Bainbridge Kenneth Bainbridge See fewer	Moonraker (1979)
Ed Bishop General Tom Farrell General Tom Farrell See fewer	2001: A Space Odyssey (1968)
Blain Fairman Robert Bacher Robert Bacher See fewer	Aliens (1986)
John Morton Robert Wilson Robert Wilson See fewer	Star Wars: Episode V - The Empire Strikes Back (1980)
Ron Berglas John Manley John Manley See fewer	Highlander (1986)
Jeff Harding M.P. M.P. See fewer	Angel Cop (1989)
Garrick Hagon Frank Oppenheimer Frank Oppenheimer See fewer	Star Wars: Episode IV - A New Hope (1977)
Barry Dennen Isidor Rabi Isidor Rabi See fewer	Jesus Christ Superstar (1973)
Michael John Paliotti Sam Allison Sam Allison See fewer	Lifeforce (1985)
David Suchet Edward Teller Edward Teller See fewer	Executive Decision (1996)
Matthew Guinness Hans Bethe Hans Bethe See fewer	Oppenheimer (1980)
Nigel Anthony Scientist Scientist See fewer	Outbreak of Murder (1962)
John Carson Narrator (voice) Narrator (voice) See fewer	Doomsday (I) (2008)
Antonino B. Garcia US Army Soldier (uncredited) US Army Soldier (uncredited) See fewer