

05/02/1956
A trama é sobre o médico Miles Bennell. Após voltar de um congresso para a sua cidade natal, ele se depara com um fenômeno estranho: diversas pessoas afirmam que seus parentes não são os mesmos, apesar de manterem a aparência física e as lembranças. Incrédulo no início, aos poucos Bennell vai descobrindo que tudo faz parte de uma invasão alienígena, que assume a forma das pessoas para conquistar seu objetivo.

Kevin McCarthy
as Dr. Miles J. Bennell

Dana Wynter
as Becky Driscoll

King Donovan
as Jack Belicec

Carolyn Jones
as Theodora 'Teddy' Belicec

Larry Gates
as Dr. Dan 'Danny' Kauffman

Kenneth Patterson
as Stanley Driscoll

Virginia Christine
as Wilma Lentz

Jean Willes
as Nurse Sally Withers

Ralph Dumke
as Police Chief Nick Grivett

Guy Way
as Officer Sam Janzek

Bobby Clark
as Jimmy Grimaldi

Beatrice Maude
as Grandma Grimaldi

Whit Bissell
as Emergency Room Psychiatrist

Richard Deacon
as Emergency Room Doctor

Robert Osterloh
as Ambulance Attendant

Guy Rennie
as Restaurant Owner

Eileen Stevens
as Anne Grimaldi

Tom Fadden
as Uncle Ira Lentz

Jean Andren
as Eleda Lentz

Everett Glass
as Dr. Ed Pursey

Sam Peckinpah
as Charlie the Meter Reader

Dabbs Greer
as Mack Lomax

Marie Selland
as Martha Lomax

Harry J. Vejar
as Man carrying pods in Mile's office (extra)

J. Pat O'Malley
as Railroad Baggage Handler (extra)

Richard Deacon
as Dr. Harvey Bassett (uncredited)

Frank Hagney
as Townsman (uncredited)

Robert Osterloh
as Ambulance Driver (uncredited)
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