Bulldog Drummond's Secret Police

John Howard

Captain Hugh 'Bulldog' Drummond

Heather Angel

Phyllis Clavering

H.B. Warner

Colonel Nielson

Reginald Denny

'Algy' Longworth

E. E. Clive

Tenny

Elizabeth Patterson

Aunt Blanche

Leo G. Carroll

Henry Seaton

Forrester Harvey

Professor Downie

Clyde Cook

Constable Hawkins

David Clyde

Constable Jenkins

Gerald Rogers

Police Sergeant Peters

J. Carrol Naish

Richard Lane (Archive Footage)