Also Known As:
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- Flickan och monstret
- Ho sposato un mostro venuto dallo spazio
- J'ai épousé un monstre
- Jag är gift med en utomjording
- Les monstres sur notre planète
- Me Casé con un Monstruo
- Me casé con un monstruo del espacio exterior
- To teras tou diastimatos
- Gene Fowler Jr.
- Louis Vittes
- Tom Tryon ... Bill Farrell
- Gloria Talbott ... Marge Bradley Farrell
- Peter Baldwin ... Officer Hank Swanson
- Robert Ivers ... Harry Phillips
- Chuck Wassil ... Ted Hanks
- Valerie Allen ... Francine - Hooker
- Ty Hardin ... Mac Brody (as Ty Hungerford)
- Ken Lynch ... Dr. Wayne
- Max 'Slapsie Maxie' Rosenbloom ... Max Grady (bartender) (as Maxie Rosenbloom)
- John Eldredge ... Police Captain H.B. Collins
- Alan Dexter ... Sam Benson
- James Anderson ... Weldon
- Jean Carson ... Helen Rhodes
- Jack Orrison ... Officer Schultz
- Steve London ... Charles Mason
- Tony Di Milo ... Mr. Potter - Western Union Clerk
- Darlene Fields ... Caroline Hanks
- Bess Flowers ... Wedding Guest
- Charles Gemora ... Alien
- Helen Jay ... Second Girl
- Arthur Lovejoy ... Minister
- Ralph Manza ... Ralph the Waiter
- Harold Miller ... Wedding Guest
- Sherry Staiger ... First Girl
- Mary Treen ... Mother Bradley
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