Riven

Basil Rathbone

as Sherlock Holmes

Nigel Bruce

as Doctor Watson

Marjorie Lord

as Nancy Partridge

Henry Daniell

as William Easter

George Zucco

as Heinrich Hinckel aka Richard Stanley

John Archer

as Naval Lt. Pete Merriam

Gavin Muir

as Mr. Lang, government agent

Edmund MacDonald

as Detective Lt. Grogan

Don Terry

as Howe

Mary Gordon

as Mrs. Hudson

Bradley Page

as Cady

Clarence Muse

as George

Mary Forbes

as Mrs. Pettibone

Holmes Herbert

as Mr. Ahrens

Thurston Hall

as Sen. Henry Babcock

Ian Wolfe

as Antiques Store Sales Clerk

John Burton

as Army Inspector (uncredited)

Gerald Hamer

as Alfred Pettibone

Gilbert Emery

as Sir Henry Marchmont (uncredited)

Margaret Seddon

as Miss Pringle (uncredited)

Mary Field

as Party Pianist (uncredited)

Colin Kenny

as Hotel Doorman (uncredited)

Caroline Frances Cooke

as Mrs. Ruxton

Roy William Neill

Director

Bertram Millhauser

Writer

Bertram Millhauser

Screenplay

Lynn Riggs

Screenplay

Bertram Millhauser

Original Story

Lester White

Director of Photography

Howard Benedict

Associate Producer

Roy William Neill

Producer

Frank Skinner

Music

Otto Ludwig

Editor

Jack Otterson

Art Direction

Russell A. Gausman

Set Decoration

Vera West

Costume Design

William Tummel

Assistant Director

Arthur Conan Doyle

Characters