On the Threshold of Space

Guy Madison

Capt. Jim Hollenbeck

Virginia Leith

Pat Lange

Dean Jagger

Dr. Hugo Thornton

John Hodiak

Maj. Ward Thomas

Martin Milner

Lt. Mort Glenn

Warren Stevens

Capt. Mike Bentley

King Calder

Lee Welch

Walter Coy

Lt. Col. Dick Masters

Ken Clark

Sgt. Ike Forbes

Lyle R. Wheeler

Art Direction

Lyn Murray

Original Music Composer

Darryl F. Zanuck

Executive Producer

Walter M. Scott

Set Decoration

Stuart A. Reiss

Set Decoration

Barbara McLean

Associate Producer

Hugh S. Fowler

Editor

Ben Nye

Makeup Artist

Joseph MacDonald

Director of Photography

Robert D. Webb

Director

Francis M. Cockrell

Writer

William Bloom

Producer

Shimon Wincelberg

Writer

Lewis H. Creber

Art Direction