Sam Waterston

as Robert Oppenheimer

7 episodes

John Carson

as Narrator

7 episodes

Shane Rimmer

as Ed Condon

7 episodes

Alexander Knox

as Henry Stimson

7 episodes

Jana Shelden

as Kitty Oppenheimer

7 episodes

Phil Brown

as Lewis Strauss

7 episodes

Edward Hardwicke

as Enrico Fermi

7 episodes

David Suchet

as Edward Teller

7 episodes

James Maxwell

as Lloyd Garrison

7 episodes

Milton Johns

as George Kistiakowsky

7 episodes

Barry Dennen

as Isidor Rabi

7 episodes

Bob Sherman

as Ernest Lawrence

7 episodes

Matthew Guinness

as Hans Bethe

7 episodes

Christopher Malcolm

as Steve Nelson

7 episodes

Garrick Hagon

as Frank Oppenheimer

7 episodes

David Baxt

as Colonel John Lansdale

7 episodes

Peter Banks

as Joseph Volpe

7 episodes

Ron Berglas

as John Manley

7 episodes

Colin Bennett

as Seth Neddermeyer

7 episodes

Christopher Muncke

as Colonel Kenneth Nichols

7 episodes