The Challenge

Darren McGavin

Jacob Gallery

Broderick Crawford

Gen. Lewis Meyers

James Whitmore

Overman

Skip Homeier

Lyman George

Paul Lukas

Dr. Nagy

Sam Elliott

Bryant

Mako

Yuro

Adolph Caesar

Clarence Opano

Andre Philippe

Swiss Official

Arianne Ulmer

Sarah

Davis Roberts

Scientist

Byron Morrow

Defense Secretary

Bill Zuckert

Army Colonel

Joseph Bernard

Doctor

Gene LeBell

Karate Instructor

Lew Brown

Sergeant

Eddie Guardino

Soldier

Garry Walberg

Submarine Captain

Bill Quinn

Marine Colonel

Michael Hinn

Army Captain

Jack Martin Smith

Art Direction

Walter M. Scott

Set Decoration

Samuel E. Beetley

Post Production Supervisor

Lionel Newman

Music Supervisor

L.B. Abbott

Special Effects

Marc Norman

Writer

George McCowan

Director

John M. Nickolaus Jr.

Director of Photography

Joseph Gluck

Editor

Ed Graves

Art Direction

Stanford Tischler

Editor

Mike Salamunovich

Unit Production Manager

Jay Cipes

Producer

Ed Palmer

Producer

Harry Geller

Original Music Composer

Joseph E. Rickards

Assistant Director

Jack Sonntag

Production Supervisor

Bert Allen

Set Decoration

Arthur Semon

Executive Story Editor