Director
John Guillermin
DIRECTOR
Writer
Francis Durbridge
WRITER
A.R. Rawlinson
Stars (in credits order)
Guy Rolfe
Mark Fenton
Lisa Daniely
Lisa Durand
Patricia Dainton
Sister Rogers
Sydney Tafler
Wade
Ballard Berkeley
Inspector Austin
Anton Diffring
Dr. Schroder
Michael Golden
Harrison
James Raglan
Sir Oliver Peters
Avice Landone
Mrs. Terry
Brian Worth
Geoffrey Terry
Eric Berry
Colonel Williams
Edward Dentith
Sergeant Lewis
Alexis Chesnakov
Ship's Captain
Ann Bennett
ACTOR
Jean Hardwicke
John Adams
Detective (uncredited)
Derek Aylward
(uncredited)
Fred Davis
William Franklyn
Dr. Gillespie (uncredited)
Desmond Llewelyn
Police Constable at barrier (uncredited)
John Wilder
