Aliens from Outer Space are slowly switching places with real humans -- one of the first being a young man about to get married. Slowly, his new wife realizes something is wrong, and her suspicions are confirmed when her husband's odd behaviour begins to show up in other townspeople.
Cast
Tom Tryon
Bill Farrell
Gloria Talbott
Marge Bradley Farrell
Alan Dexter
Sam Benson
Jean Carson
Helen Rhodes
Ken Lynch
Dr. Wayne
Maxie Rosenbloom
Max Grady - Bartender
Peter Baldwin
Officer Hank Swanson
Jack Orrison
Officer Schultz
John Eldredge
Police Capt. H.B. Collins
Robert Ivers
Harry Phillips
Chuck Wassil
Ted Hanks
Ty Hardin
Mac Brody (as Ty Hungerford)
Valerie Allen
Francine - Hooker
Mary Treen
Mother Bradley (uncredited)
James Anderson
Weldon
Steve London
Charles Mason
Darlene Fields
Caroline Hanks (uncredited)
Tony Di Milo
Mr. Potter - Western Union Clerk (uncredited)
Sherry Staiger
First Girl (uncredited)
Helen Jay
Second Girl (uncredited)
Arthur Lovejoy
Minister (uncredited)
Ralph Manza
Ralph the Waiter (uncredited)
Charles Gemora
Alien (uncredited)
Joe Gray
Alien (uncredited)
Harold Miller
Wedding Guest (uncredited)
Bess Flowers
Wedding Guest (uncredited)
Crew
Gene Fowler Jr.
Director, Producer
Louis Vittes
Writer
George Tomasini
Editor
Haskell B. Boggs
Director of Photography
Bud Brill
Second Assistant Director
William Mull
Assistant Director
Kenneth Meade
Camera Operator
Paul Weddell
Assistant Camera
Bert McKay
Casting Director
John Noble
Costumer
Hazel Hegarty
Costumer
Nellie Manley
Hair Supervisor
Dean Cole
Hairdresser
Charles Gemora
Makeup Artist
Wally Westmore
Makeup Supervisor
Jim Miller
Sound Recordist
Philip Wisdom
Sound Recordist
Charles Grenzbach
Sound Recordist
Bob Simpson
Boom Operator
John P. Fulton
Visual Effects
Victor Young
Original Music Composer
Franz Waxman
Original Music Composer
Leith Stevens
Original Music Composer
Hugo Friedhofer
Original Music Composer
Daniele Amfitheatrof
Original Music Composer
Sam Comer
Set Decoration
Robert R. Benton
Set Decoration
Jim Cottrell
Props
Carl Coleman
Props
Glen E. Richardson
Still Photographer
Dorothy Yutzi
Script Supervisor
Joe Schuster
Best Boy Electric
Darrell Turnmire
Key Grip
Mike Semenario
Grip
Frank Caffey
Production Manager
Don Robb
Unit Production Manager
Curtis Mick
Assistant Production Manager
Al Peterson
Craft Service
Bill Cunningham
Publicist
Hal Pereira
Art Direction
Henry Bumstead
Art Direction
Ted Wasserman
Utility Sound
