Basil Rathbone

Sherlock Holmes

Nigel Bruce

Doctor Watson

Gerald Hamer

Potts / Tanner / Ramson

Paul Cavanagh

Lord Penrose

Arthur Hohl

Emile Journet

Miles Mander

Judge Brisson

Kay Harding

Marie Journet

David Clyde

Police Sergeant Thompson

Ian Wolfe

Drake

Victoria Horne

Nora

Al Ferguson

Attendant (uncredited)

Olaf Hytten

Hotel Day Desk Clerk (uncredited)

Bobby Hale

Villager in Pub (uncredited)

Harry Allen

Gertrude Astor

Clyde Fillmore

Charles Francis

George Kirby

Pietro Sosso

Roy William Neill

Producer

Ralph M. DeLacy

Art Direction

Edmund L. Hartmann

Screenplay

John B. Goodman

Art Direction

Paul Gangelin

Story

Paul Landres

Editor

Paul Sawtell

Original Music Composer

Brenda Weisberg

Story

Arthur Conan Doyle

Characters

Roy William Neill

Director

Roy William Neill

Screenplay

George Robinson

Director of Photography