"A physician is forced to operate on a mystery figure under shady circumstances."
Guy Rolfe
as Dr. Mark Fenton
Lisa Daniely
as Lisa Durand
Patricia Dainton
as Sister Rogers
Sydney Tafler
as Wade
Ballard Berkeley
as Inspector Austin
Anton Diffring
as Edward Shroder
Brian Worth
as Geoffrey Terry
Avice Landone
as Mrs. Terry
Eric Berry
as Col. Williams
James Raglan
as Sir Oliver Peters
Alexis Chesnakov
as Ship's Captain
Michael Golden
as Harrison
Edward Dentith
as Sergeant Lewis
Derek Aylward
as
William Franklyn
as Dr. Gillespie
Desmond Llewelyn
as Police Constable at Barrier
John Guillermin
Director
Denis Johnson
Assistant Director
Francis Durbridge
Story
A.R. Rawlinson
Writer
