John Mills
Supt. Mike Halloran
Acting
Charles Coburn
Dr. John Fenner
Acting
Barbara Bates
Elizabeth Fenner
Acting
Derek Farr
Mark Roper
Acting
Alec McCowen
Peter Crowley (as Alec Mc Cowen)
Acting
Fay Compton
Mrs. Crowley
Acting
Geoffrey Keen
Charles Dixon
Acting
Margaretta Scott
Helen Dixon
Acting
Meredith Edwards
Police Sgt. Rogers
Acting
Harry Locke
Police Sgt. Beale
Acting
Raymond Huntley
Dr. Reese
Acting
Harry Fowler
Leslie (Bandleader)
Acting
Maureen Connell
Mary Roper
Acting
Magda Miller
Molly Stevens
Acting
Newton Blick
Asst. Commissioner Beckett
Acting
Oscar Quitak
David
Acting
Totti Truman Taylor
Mrs. Gerrard
Acting
Grace Arnold
Club Committee Woman
Acting
Elizabeth Seal
'Fiona' / Fiona Dixon
Acting