I Married a Monster from Outer Space

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.

• 
  Dorothy Yutzi
• 
  William Mull
• 
  Gene Fowler Jr.
• 
  Bud Brill

• 
  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)