Self (archive footage)

Theodore Hall

Self

Joan Hall

Ed Hall

Zach Twardowski

Young Ruthie

Olivia Piper

Sax baby

Enzo Inalsingh

Susan Sax

Kate Marie Smith

Self (archive footage) (uncredited)

Leslie Groves

Self (archive footage) (uncredited)

J. Robert Oppenheimer

Self (archive footage) (uncredited)

Joseph E. Davies

Self (archive footage) (uncredited)

Walter Huston

Self (archive footage) (uncredited)

Ann Harding

Self (archive footage) (uncredited)

Manart Kippen

Self

Joseph Albright

Self (archive footage) (uncredited)

Harry S. Truman

Self (archive footage) (uncredited)

Dwight D. Eisenhower

Self (archive footage) (uncredited)

Henry L. Stimson

Self (archive footage) (uncredited)

Joseph Stalin

Self (archive footage) (uncredited)

Paul Tibbets

Self (archive footage) (uncredited)

Julius Rosenberg

Self (archive footage) (uncredited)

Ethel Rosenberg

Self

Marcia Kunstel

Self

Daniel Axelrod

Ted Hall

J. Michael Wright

Joan Hall

Lucy Zukaitis

Savy Sax

Nicolas Eastlund

FBI Agent McQueen

Mickey O'Sullivan

FBI Agent 3

Tom Goodwin

Executive Producer

Jeff Skoll

Director

Steve James

Editor

Steve James

Writer

Steve James

Executive Producer

Tim Horsburgh

Executive Producer

Diane Weyermann

Director of Photography

Tom Bergmann