Cast
Donald Pleasence
Dr. Hawley Harvey Crippen
Coral Browne
Belle Crippen
Samantha Eggar
Ethel Le Neve
Donald Wolfit
R.D. Muir (as Sir Donald Wolfit)
Paul Carpenter
Bruce Martin
Guy Standeven
Ships Steward (uncredited)
Edward Underdown
The Governor
Basil Henson
Mr. Arditti
Geoffrey Toone
Mr. Tobin
John Arnatt
Chief Inspector Dew
Oliver Johnston
Lord Chief Justice
Max Faulkner
Radio Officer Andrews (uncredited)
James Robertson Justice
Captain McKenzie
Olga Lindo
Mrs. Clara Arditti
Hamilton Dyce
Dr. Rogers
Totti Truman Taylor
Miss Curnow