Director
Dick Darley
DIRECTOR
Larry Robertson
Stars (in credits order)
Ed Kemmer
Cmdr. Buzz Corry
Lyn Osborn
Cadet Happy
Nina Bara
Tonga
Ken Mayer
Maj. Robbie Robertson
Bela Kovacs
Prince Baccarratti
Virginia Hewitt
Carol Carlisle
Marvin Miller
Mr. Proteus
Ben Welden
Johnson
Tom McKee
Ahyo
Joel Smith
Android
Paul Cavanagh
Colonel Henderson
Lawrence Dobkin
Marco
Morgan Shaan
Axel
Howard Wright
Andrews
Richard Karlan
Captain Dagger
Valerie Bales
Yula
Bill Baldwin
Barti
Jack Reitzen
Keller
Lee Van Cleef
Herrick
Charles Horvath
Corporal
Peter Mamakos
Robert Carson
Governor Willis
Charles Victor
Dr. Jerry Taylor
Gabriel Curtiz
Dr. Malengro
William Justine
Benjamin
Norman Jolley
Agent X
Robert Shayne
Groata
Joel Marston
Bill Redrow
Norbert Schiller
Bit
I. Stanford Jolley
Dr. Lambert
Dorothy Ford
Queen Riva
Oliver Blake
Ezekial Martin
Henry Corden
Brooks
Hal Forrest
Secretary General
Jack Brown
Josiah
Gail Bonney
Goodwife Martin
Ward Wood
Farlon
Jack Narz
Announcer
John Alderson
Bolen
Stephen Chase
Sloan
Frederic Berest
Bender
Leo V. Matranga
Freddie
Edward Taylor
Bookstore Clerk
William Boyett
Guard
Anne Dore
Letha
Joe Cranston
Gloria Pall
Zamba
Frances Farwell
Calva
Hannes Lutz
Doctor Kurt
Kurt Katch
Arachna
Carleton Young
Gen. Narda
Alvy Moore
Ferris Macklin
Lisa Howard
Lisa
Keith Larsen
Bradford
Paul Guilfoyle
Brunner
George Pembroke
Carl Marsden
Jerry O'Sullivan
Hefler
Rudolph Anders
Doctor Van Meter
Harold Gordon
Doctor Maddox
Bert Holland
The General
John Larch
Korwin
Don Gordon
Captain Pasko
Jesse Wayne
Pierce Lyden
Chaney
Jerry Sheldon
William E. Green
Pop Stanton
William Schallert
Craig
Maurice Hill
Capt. Hayward
Richard Bartlett
Harris
Jean Howell
Nurse
Dan Seymour
Kovel
Thomas Browne Henry
Holliday
Jan Arvan
Kruse
Phil Chambers
Forman
Roland Varno
Doc
Bruce Payne
Breckrenridge
George Douglas
Gene Roth
Cole
Marshall Bradford
Perry
Michael Colgan
Fredericks
Lloyd Nelson
Ed Hinton
Tyler
Jack Lynn
Arthur Marshall
Malin
Richard Norris
John
Jane Davids
Jo Vance
Henry Rowland
Max
Edith Evanson
Aunt Sybil Todd
Frank Richards
King
Don Jones
John Halloran
Salbo
Earl Lee
Lowell
Wayne Taylor
Truck Todd
Janet Dascher
The Girl
Richard Devon
Molock
Vicki Bakken
Marta
Dabbs Greer
Paul Marin
George Chandler
Fred Masterson
Sue England
Terry
Sam Edwards
Eric Werner
James Nusser
Ben
Sara Berner
Sara
Emil Sitka
Pete
Hans Schumm
Brewer
David Bair
Governor's Son
Glenn Dixon
Space Patrol Major Gruel
Stephen Coit
Lt. Conway
Crane Whitley
Kessler
Jack Wilson
Fairhorn
Wayne Winton
Gerald Mazzman
Richard Bergren
Lt. Gethard
Peter Foster
Zurach
Perry Evans
Brand
John Mel
Thutmon
Anne Diamond
Alicia
George Demetrios
Dr. Smatka
James Clay
Ghent
Glenn Strange
Captain Jonas
Lyle Talbot
Cadwalader
Byron Foulger
ACTOR
Stanley Andrews
Barrow
James Dobson
Cadet Cramer
Clark Howat
Manson
Jimmy Boyd
Jimmy
Ludwig Donath
Professor Bradshaw
Tracey Roberts
Therma
Robert Knapp
Lt. Bruce
Stanley Farrar
Lennan
Will J. White
Tharl
Gloria Saunders
Lois
Mona Knox
Lanya
Lou Nova
Igor
James Logan
Todd
Evelyn Eaton
Miss Wagner
Harold Dyrenforth
Sandor
Tony Michaels
Mechanic
Robert Beecher
Gar
Tom Daly
Klinger
Howard Price
Graham
John Roth
Bruta
Joyce Craig
Lola
Elaine Williams
Maleeva
James Bronte
Malcolm
Robert Dane
Hoag
Inge Borg
Erika
Liba Petrova
Jana
Gordon Grange
Andy
Douglas Grange
Benson
Albert Taylor
Nazi Lieutenant
Paul Richards
Billy Curtis
Gino
Elizabeth Harrower
Woman
Sally Fraser
Linda
Eddie Ryder
Ronald
Lee Millar
Jeffrey Silver
Rudy
Jeanne Gail
Judy
Gilman Rankin
Leonard Bremen
Stone
Dran Hamilton
Miss Gordon
Kem Dibbs
Hendrix
Harry Monty
Mario
Paul Keast
White
John Damler
Number 2
Isa Ashdown
Millie
Ramsay Hill
Governor Marin
Edward Clark
Harkins
Donald Lawton
Jean Howard
Irene
Karl 'Killer' Davis
Durk
Mickey Little
Danny
Marvin Press
Harper
Lee Morgan
Kazer
Hal Gerard
Brenner
Robert Shafto
Professor Walton
Michael Hale
Doctor Brockway
Toni Seitz
Paul Klatt Jr.
Rollo
Ruth Gur
Riva
Kerwin Mathews
Major Caldwell
Peter Hansen
Doctor Paul Yates
Rand Brooks
Jean Inness
Bess Osborn
Robert Nash
Doctor Lorenz
George Baxter
Gart Stanger
Charles Calvert
Bill Osborn
Glen Denning
Commander Kit Corry
Jack McHugh
Major Sova
Don Hicks
Bill Bryar
Howard Culver
Robert Boon
Lieutenant Rayzo
Phil Sutton
Guard #2
Dick Tufeld
Announcer (uncredited)
Richard Weil
Harris (uncredited)
LeRoy Lennart
Police Officer Carson (uncredited)