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