Character Name : Susan North

Original Name : Patricia Neal

Gender : Female

Character Name : The Stranger

Original Name : Helmut Dantine

Gender : Male

Character Name : Arthur Walker

Original Name : Derek Bond

Gender : Male

Character Name : Dr. Meinard

Original Name : Cyril Luckham

Gender : Male

Character Name : Tom Harding

Original Name : Willoughby Gray

Gender : Male

Character Name : Gretchen Harding

Original Name : Marigold Russell

Gender : Female

Character Name : Scientist

Original Name : Arthur Young

Gender : Male

Character Name : Charles Dixon

Original Name : Kenneth Edwards

Gender : Male

Character Name : First Police Officer

Original Name : David Garth

Gender : Male

Character Name : General

Original Name : Stanley Van Beers

Gender : Male

Character Name : Second Police Officer

Original Name : Nigel Green

Gender : Male

Character Name : Police Chief

Original Name : Graham Stuart

Gender : Male

Character Name : Official

Original Name : John Le Mesurier

Gender : Male

Character Name : Soldier

Original Name : Peter Sallis

Gender : Male