Kevin McCarthy
Dr. Miles J. Bennell
Dr. Miles Bennell returns to his small town practice to find several of his patients suffering the paranoid delusion that their friends or relatives are impostors. He is initially skeptical, especially when the alleged doppelgangers are able to answer detailed questions about their victim's lives, but he is eventually persuaded that something odd has happened and determines to find out what is causing this phenomenon.
Dr. Miles J. Bennell
Becky Driscoll
Jack Belicec
Theodora 'Teddy' Belicec
Dr. Dan 'Danny' Kauffman
Stanley Driscoll
Wilma Lentz
Nurse Sally Withers
Police Chief Nick Grivett
Officer Sam Janzek
Jimmy Grimaldi
Grandma Grimaldi
Emergency Room Psychiatrist
Emergency Room Doctor (uncredited)
Ambulance Attendant
Restaurant Owner
Anne Grimaldi
Uncle Ira Lentz
Eleda Lentz
Dr. Ed Pursey
Director
