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.
You can now watch I Married a Monster from Outer Space online on the following streaming providers in the United States.
| Visual Effects | John P. Fulton | Visual Effects |
| Art | Henry Bumstead | Art Direction |
| Costume & Make-Up | John Noble | Costumer |
| Art | Robert R. Benton | Set Decoration |
| Costume & Make-Up | Hazel Hegarty | Costumer |
| Lighting | Joe Schuster | Best Boy Electric |
| Production | Don Robb | Unit Production Manager |
| Production | Curtis Mick | Assistant Production Manager |
| Costume & Make-Up | Dean Cole | Hairdresser |
| Camera | Haskell B. Boggs | Director of Photography |
| Writing | Louis Vittes | Writer |
| Lighting | Howard Kelly | Gaffer |
| Directing | Bud Brill | Second Assistant Director |
| Camera | Darrell Turnmire | Key Grip |
| Art | Sam Comer | Set Decoration |
| Art | Jim Cottrell | Props |
| Sound | Daniele Amfitheatrof | Original Music Composer |
| Camera | Paul Weddell | Assistant Camera |
| Sound | Jim Miller | Sound Recordist |
| Sound | Philip Wisdom | Sound Recordist |
| Art | Hal Pereira | Art Direction |
| Production | Gene Fowler Jr. | Producer |
| Directing | Gene Fowler Jr. | Director |
| Crew | Al Peterson | Craft Service |
| Sound | Franz Waxman | Original Music Composer |
| Costume & Make-Up | Nellie Manley | Hair Supervisor |
| Sound | Victor Young | Original Music Composer |
| Sound | Hugo Friedhofer | Original Music Composer |
| Production | Bill Cunningham | Publicist |
| Directing | William Mull | Assistant Director |
| Directing | Dorothy Yutzi | Script Supervisor |
| Camera | Mike Semenario | Grip |
| Sound | Bob Simpson | Boom Operator |
| Sound | Charles Grenzbach | Sound Recordist |
| Production | Frank Caffey | Production Manager |
| Costume & Make-Up | Wally Westmore | Makeup Supervisor |
| Camera | Glen E. Richardson | Still Photographer |
| Production | Bert McKay | Casting Director |
| Camera | Kenneth Meade | Camera Operator |
| Editing | George Tomasini | Editor |
| Sound | Leith Stevens | Original Music Composer |
| Sound | Ted Wasserman | Utility Sound |
| Art | Carl Coleman | Props |
| Costume & Make-Up | Charles Gemora | Makeup Artist |
