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Dr. Doug Standish

Brian Kelly

Dr. Craig Mosby

Shirley Eaton

Dr. Margaret E. 'Maggie' Hanford

David McCallum

Dr. Philip Volker

Keenan Wynn

Hank Stahl

Marshall Thompson

Dr. Orin Hillyard

Gary Merrill

Dr. August 'Gus' Boren

Ron Hayes

Brinkman

George Shibata

Prof. Uji Hamaru

Donald Linton

Vice President

Frank Logan

Captain of the Diligence

Don Wells

Sonar Man on the Dilligence

Celeste Yarnall

Secretary

Andrew Marton

Director

Arthur Weiss

Writer

Jim Danforth

Visual Effects

Andrew Marton

Producer

Max Pittman

Set Decoration

Ivan Tors

Producer

Preston Rountree

Art Direction

Harry Sukman

Original Music Composer

Clifford H. Poland Jr.

Director of Photography

Warren Adams

Editor

Mel Bledsoe

Art Direction

Art Arthur

Writer

Ben Chapman

Associate Producer

Ivan Tors Productions