Cast 13
Lloyd Bridges
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
Crew 13
Andrew Marton
Director
Arthur Weiss
Writer
Andrew Marton
Producer
Ivan Tors
Producer
Harry Sukman
Original Music Composer
Clifford H. Poland Jr.
Director of Photography
Warren Adams
Editor
Mel Bledsoe
Art Direction
Preston Rountree
Art Direction
Max Pittman
Set Decoration
Jim Danforth
Visual Effects
Art Arthur
Writer
Ben Chapman
Associate Producer