Paul Newman

Gen. Leslie R. Groves

Dwight Schultz

J. Robert Oppenheimer

Bonnie Bedelia

Kitty Oppenheimer

John Cusack

Michael Merriman

Laura Dern

Kathleen Robinson

Ron Frazier

Peter de Silva

John C. McGinley

Richard Schoenfield

Natasha Richardson

Jean Tatlock

Ron Vawter

Jamie Latrobe

Michael Brockman

William "Deke" Parsons

Del Close

Dr. Kenneth Whiteside

John Considine

Robert Tuckson