Overview
A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.
Trailer
Crew
DirectorDon Siegel
WriterDaniel Mainwaring, Richard Collins
Cast
Kevin McCarthy
Dr. Miles J. Bennell
Dana Wynter
Becky Driscoll
King Donovan
Jack Belicec
Carolyn Jones
Theodora 'Teddy' Belicec
Larry Gates
Dr. Dan 'Danny' Kauffman
Kenneth Patterson
Stanley Driscoll
Virginia Christine
Wilma Lentz
Jean Willes
Nurse Sally Withers
Ralph Dumke
Police Chief Nick Grivett
Guy Way
Officer Sam Janzek
Bobby Clark
Jimmy Grimaldi
Beatrice Maude
Grandma Grimaldi
Whit Bissell
Emergency Room Psychiatrist
Richard Deacon
Emergency Room Doctor (uncredited)
Robert Osterloh
Ambulance Attendant
Guy Rennie
Restaurant Owner
Eileen Stevens
Anne Grimaldi
Tom Fadden
Uncle Ira Lentz
Jean Andren
Eleda Lentz
Everett Glass
Dr. Ed Pursey
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Keywords
small townbased on novel or bookalienblack and whitedoctorpatientalien invasionpsychiatristalien infectionangry mobdoppelgängermystery writerbody snatchersemotionlessparanoidhopelessabandoned minepersonality changesuspensefulalien plant-life
Details
Budget
$0M
Revenue
$3M
TMDb Votes
1,195
Added May 14, 2026Updated Jun 3, 2026