Cast (23)
Joseph Cotten
Admiral
Lloyd Haynes
Lt. Dave Burston
Dewey Martin
Skip Langley
Leonard Nimoy
Comdr. Phil Kettenring
William Windom
Capt. Frank Reardon
Keenan Wynn
Orville Kelly
Malachi Throne
Dr. Dykers
Sam Elliott
Ens. William 'Bill' Sandover
Ivor Barry
Donald Ellington
Ron Masak
CPO Corky Schmidt
Gordon Hoban
Second Karp (False Karp)
Lee Stanley
Lt. Manners
David Thorpe
Lt. Benson
Henry Olek
Cab Driver
Dale Tarter
Clarence W. "CW" Karp (First Karp)
James Beach
Radar Operator
John Winston
English Scientist
Larry McCormick
Radio Operator
Paul Sears
Paine
Ellen Tucker
Mrs. Karp
Bill Keller
Shore Patrolman
Bobby Herbeck
Sonarman
Bo Johnson
Seaman
Joseph Cotten
Admiral
Lloyd Haynes
Lt. Dave Burston
Dewey Martin
Skip Langley
Leonard Nimoy
Comdr. Phil Kettenring
William Windom
Capt. Frank Reardon
Keenan Wynn
Orville Kelly
Malachi Throne
Dr. Dykers
Sam Elliott
Ens. William 'Bill' Sandover
Ivor Barry
Donald Ellington
Ron Masak
CPO Corky Schmidt
Gordon Hoban
Second Karp (False Karp)
Lee Stanley
Lt. Manners
David Thorpe
Lt. Benson
Henry Olek
Cab Driver
Dale Tarter
Clarence W. "CW" Karp (First Karp)
James Beach
Radar Operator
John Winston
English Scientist
Larry McCormick
Radio Operator
Paul Sears
Paine
Ellen Tucker
Mrs. Karp
Bill Keller
Shore Patrolman
Bobby Herbeck
Sonarman
Bo Johnson
Seaman
Crew (23)
Directing
Marvin J. Chomsky
Director
Robert Birnbaum
Assistant Director
Writing
Jackson Gillis
Writer
Production
James Nicholson
Unit Manager
Jim Merrick
Casting
Bruce Lansbury
Producer
Sam Strangis
Production Manager
Camera
Howard Schwartz
Director of Photography
Crew
John Burke
Special Effects
Edward K. Milkis
Post Production Supervisor
Charlie Picerni
Stunts
Editing
Donald R. Rode
Editor
Costume & Make-Up
Jan Kemp
Wardrobe Designer
Hal Lierley
Makeup Artist
Jennifer L. Parsons
Wardrobe Designer
Art
William L. Campbell
Art Direction
Pierre Ludlum
Set Decoration
Ted Cook
Property Master
Bill Ross
Supervising Art Director
Sound
Dominick Gaffey
Sound Mixer
Doug Grindstaff
Supervising Sound Editor
Leith Stevens
Original Music Composer
Jack Hunsaker
Supervising Music Editor