Cast

James Whitmore

Sgt. Ben Peterson

James Arness

FBI Agent Robert Graham

Joan Weldon

Dr. Pat Medford

Edmund Gwenn

Dr. Harold Medford

Onslow Stevens

Brig. Gen. Robert O'Brien

Sean McClory

Maj. Kibbee

Sandy Descher

The Ellinson Girl

Chris Drake

Trooper Ed Blackburn

Don Shelton

Trooper Capt. Fred Edwards

Fess Parker

Alan Crotty

Crew

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Sidney Hickox

Director of Photography (Camera)

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Thomas Reilly

Editor (Editing)

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David Weisbart

Producer (Production)

Gordon Douglas

Director (Directing)

Bronislau Kaper

Original Music Composer (Sound)

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Ted Sherdeman

Screenplay (Writing)

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Stanley Fleischer

Art Direction (Art)

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G.W. Berntsen

Set Decoration (Art)

George Worthing Yates

Story (Writing)

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Russell S. Hughes

Adaptation (Writing)