Assigned to oversee the development of the atomic bomb, Gen. Leslie Groves is a stern military man determined to have the project go according to plan. He selects J. Robert Oppenheimer as the key scientist on the top-secret operation, but the two men clash fiercely on a number of issues. Despite their frequent conflicts, Groves and Oppenheimer ultimately push ahead with two bomb designs — the bigger "Fat Man" and the more streamlined "Little Boy."
Paul Newman
as Gen. Leslie R. Groves
Dwight Schultz
as J. Robert Oppenheimer
Bonnie Bedelia
as Kitty Oppenheimer
John Cusack
as Michael Merriman
Laura Dern
as Kathleen Robinson
Ron Frazier
as Peter de Silva
John C. McGinley
as Richard Schoenfield
Natasha Richardson
as Jean Tatlock
Ron Vawter
as Jamie Latrobe
Michael Brockman
as William "Deke" Parsons
Del Close
as Dr. Kenneth Whiteside
John Considine
as Robert Tuckson
