The Triumph of Sherlock Holmes

Arthur Wontner

as Sherlock Holmes

Lyn Harding

as Prof. Moriarty

Leslie Perrins

as John Douglas

Ian Fleming

as Dr. John Watson

Charles Mortimer

as Insp. Lestrade

Minnie Rayner

as Mrs. Hudson

Michael Shepley

as Cecil Barker

Jane Carr

as Ettie Douglas

Ben Welden

as Ted Balding

Roy Emerton

as Boss McGinty

Wilfrid Caithness

as Col. Sebastian Moran

Conway Dixon

as Ames

Edmund D'Alby

as Captain Marvin

Ernest Lynds

as Jacob Shafter

George Spence

as Scowrer (uncredited)