Gertrude Michael

Sophie Lang

Paul Cavanagh

Max Bernard, a.k.a. Sir Nigel Crane

Alison Skipworth

Aunt Nellie

Arthur Byron

Inspector Stone

Leon Errol

Stubbs

Ben Taggart

Capt. Thomson

Ferdinand Gottschalk

Augustus Telfen

Dell Henderson

House Detective

Jack Mulhall

Clerk

Lucio Villegas

The Marshall