O FIM OU O PRINCÍPIO

Brian Donlevy

Maj. Gen. Leslie R. ...

Robert Walker

Col. Jeff Nixon

Tom Drake

Matt Cochran

Beverly Tyler

Anne Cochran

Hume Cronyn

Dr. J. Robert Oppenh...

Audrey Totter

Jean O'Leary

Hurd Hatfield

Dr. John Wyatt

Joseph Calleia

Dr. Enrico Fermi

Godfrey Tearle

President Franklin D...

Victor Francen

Dr. Marre

Richard Haydn

Dr. Chisholm

Jonathan Hale

Dr. Vannevar Bush

John Litel

K.T. Keller

Henry O'Neill

Gen. Thomas F. Farre...

Warner Anderson

Capt. William S. Par...

Ellen Ross

Waitress

Bobby Jordan

Radioman on Tinian R...

Jerry Schumache...

Nazi Officer

Norman Taurog

Diretor(a)

Frank Wead

Roteirista

Frank E. Myers

Assistant Director

Bob Considine

História

Samuel Marx

Produtor(a)

Daniele Amfithe...

Original Music Compo...

Edwin B. Willis

Set Decoration

Hans Peters

Art Direction

F. Keogh Gleaso...

Set Decoration

Cedric Gibbons

Art Direction

Stanley Goldsmi...

Assistant Director

Ray June

Diretor(a) de Fotogr...

George Boemler

Editor(a)