Cast

Lloyd Haynes
Lloyd Haynes
Lieutenant Dave Burston
Dewey Martin
Dewey Martin
Skip Langley
Leonard Nimoy
Leonard Nimoy
Commander Phil Kettenring
William Windom
William Windom
Captain Frank Reardon
Keenan Wynn
Keenan Wynn
Orville Kelly
Malachi Throne
Malachi Throne
Dr. Dykers
Sam Elliott
Sam Elliott
Ensign William «Bill» Sandover
Ivor Barry
Ivor Barry
Donald Ellington
Ron Masak
Ron Masak
CPO Corky Schmidt
Gordon Hoban
Gordon Hoban
Second Karp (False Karp)
Lee Stanley
Lee Stanley
Lieutenant Manners
David Thorpe
David Thorpe
Lieutenant Benson
Henry Olek
Henry Olek
Cab Driver
Dale Tarter
Dale Tarter
Clarence W. (CW), Karp (First Karp)
James Beach
James Beach
Radar Operator
John Winston
John Winston
English Scientist
Larry McCormick
Larry McCormick
Radio Operator
Ellen Tucker
Ellen Tucker
Mrs. Karp
Bill Keller
Bill Keller
Shore Patrolman
Mark Russell
Mark Russell
Crewman, not listed in credits

Scriptwriters

Cinematography