James Ellison as Robert Curtis

Heather Angel as Helga Hammond

John Howard as Oliver Hammond

Bramwell Fletcher as Dr. Jeff Colbert

Heather Thatcher as Conita 'Christy' Christopher

Aubrey Mather as Inspector Craig

Halliwell Hobbes as Walton the Butler

Matthew Boulton as Coroner (uncredited)

Harry Carter as Warren (uncredited)

Alec Craig as Will the Groundsman (uncredited)

Douglas Gerrard as Jury Foreman (uncredited)

Holmes Herbert as Chief Constable (uncredited)

Eily Malyon as Mrs. Walton (uncredited)

Charles McGraw as Strud Strudwick (uncredited)

Clive Morgan as Foster (uncredited)

John Rogers as Tom Clagpool (uncredited)

Jerry Sheldon as Villager (uncredited)

Donald Stuart as Charlie Clagpool (uncredited)

David Thursby as Inspector Craig's Assistant (uncredited)

Valerie Traxler as Kate O'Malley (uncredited)

Heather Wilde as Millie the New Maid (uncredited)