Donald Woods as Perry Mason

Ann Dvorak as Della Street

Anne Nagel as Janice Alma Brownley

Linda Perry as Janice Seaton

Craig Reynolds as Gordon Bixler

Gordon Oliver as Philip Brownley

Joseph Crehan as Paul Drake

Helen MacKellar as Stella Kenwood

Edward McWade as Bishop Mallory

Tom Kennedy as Jim Magooney

Mira McKinney as Ida Gilbert

Frank Faylen as Charlie Downs

Douglas Wood as Renald C. Brownley

Veda Ann Borg as Gladys

George Lloyd as Peter Sacks

Selmer Jackson as Victor Stockton

Charles C. Wilson as Hamilton Burger

Eddy Chandler as Detective James Fleet (uncredited)

Don Downen as Bellboy (uncredited)

Harry Fox as Clerk (uncredited)

Gordon Hart as Judge Knox (uncredited)

Stuart Holmes as Renald's Butler (uncredited)

Lyle Moraine as Western Union Witness (uncredited)

Jack Mower as Second Detective (uncredited)

Wedgwood Nowell as Hotel Manager (uncredited)

Paul Panzer as Guiseppe - Waiter (uncredited)

John J. Richardson as Second Taxi Driver (uncredited)

Cliff Saum as Third Detective (uncredited)

Ferdinand Schumann-Heink as Ambulance Helper (uncredited)

John Shelton as Ambulance Doctor (uncredited)

Louise Stanley as Young Woman in Room 310 (uncredited)

Billy Wayne as First Taxi Driver (uncredited)

Tom Wilson as Yacht Club Attendant Watchman (uncredited)

Dan Wolheim as Policeman (uncredited)