Character Name : David Preston

Original Name : Ralph Richardson

Gender : Male

Character Name : Janet Preston

Original Name : Margaret Leighton

Gender : Female

Character Name : Inspector Hemingway

Original Name : Campbell Singer

Gender : Male

Character Name : Dr. Sparling

Original Name : Jack Hawkins

Gender : Male

Character Name : Major Watson

Original Name : Michael Shepley

Gender : Male

Character Name : Solicitor Petheridge

Original Name : Frederick Piper

Gender : Male

Character Name : Peggy Dobson

Original Name : Meriel Forbes

Gender : Female

Character Name : Mrs. Watson

Original Name : Margaret Withers

Gender : Female

Character Name : Sergeant Evans

Original Name : Gerald Case

Gender : Male

Character Name : Ellen

Original Name : Diana Beaumont

Gender : Female

Character Name : Station Sergeant (uncredited)

Original Name : Archie Duncan

Gender : Male

Character Name : Joe Dobson (uncredited)

Original Name : Johnnie Schofield

Gender : Male