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