Character Name : Supt. Mike Halloran

Original Name : John Mills

Gender : Male

Character Name : Dr. John Fenner

Original Name : Charles Coburn

Gender : Male

Character Name : Elizabeth Fenner

Original Name : Barbara Bates

Gender : Female

Character Name : Mark Roper

Original Name : Derek Farr

Gender : Male

Character Name : Peter Crowley (as Alec Mc Cowen)

Original Name : Alec McCowen

Gender : Male

Character Name : Mrs. Crowley

Original Name : Fay Compton

Gender : Female

Character Name : Charles Dixon

Original Name : Geoffrey Keen

Gender : Male

Character Name : Helen Dixon

Original Name : Margaretta Scott

Gender : Female

Character Name : Police Sgt. Rogers

Original Name : Meredith Edwards

Gender : Male

Character Name : Police Sgt. Beale

Original Name : Harry Locke

Gender : Male

Character Name : Dr. Reese

Original Name : Raymond Huntley

Gender : Male

Character Name : Leslie (Bandleader)

Original Name : Harry Fowler

Gender : Male

Character Name : Mary Roper

Original Name : Maureen Connell

Gender : Female

Character Name : Molly Stevens

Original Name : Magda Miller

Gender : Female

Character Name : Asst. Commissioner Beckett

Original Name : Newton Blick

Gender : Male

Character Name : David

Original Name : Oscar Quitak

Gender : Male

Character Name : Mrs. Gerrard

Original Name : Totti Truman Taylor

Gender : Female

Character Name : Club Committee Woman

Original Name : Grace Arnold

Gender : Female

Character Name : 'Fiona' / Fiona Dixon

Original Name : Elizabeth Seal

Gender : Female