Full Credits
26 members

Stuart Whitman
Adm. Michael Matthews

Robert Wagner
Brett

Rosemary Forsyth
Lia Holmes

Robert Colbert
Cmdr. Woody Patterson

Burr DeBenning
Aguila

Susana Miranda
Elena

Paul Stewart
Barton

Whit Bissell
Prof. Holmes

Richard Basehart
The President

Joseph Cotten
Dr. Ziegler

James Darren
Dr. Talty

Sugar Ray Robinson
Capt. Hunter

Charles Dierkop
Quinn

Larry Pennell
Bill Holmes

William Bryant
Capt. Lunderson

Robert Dowdell
Young Officer

Edward G. Robinson Jr.
Dr. Burkson

Sheila Allen
Blonde Woman

Tom Drake
Gen. Putnam
Johnny Lee
Tony
Glenna Sergent
Sally
Ray Didsbury
Security Guard

Erik L. Nelson
Triton Controller
Paul Bradley
Scientist (uncredited)

George Holmes
Scientist (uncredited)
Victor Toyota
Scientist (uncredited)
16 members
Irwin Allen
Director
Cleo Anton
Script Supervisor
Irwin Allen
Story
John Meredyth Lucas
Screenplay
Irwin Allen
Producer
George E. Swink
Associate Producer
Sidney Marshall
Associate Producer
Kenneth Peach
Director of Photography
Richard LaSalle
Music
Richard LaSalle
Conductor
James Cane
Set Decoration
Rodger Maus
Art Direction
Stan Jolley
Art Direction
Paul Zastupnevich
Costume Design
James Baiotto
Editor
Denny Arnold
Stunts