Episode The Sleeping Cardinal Adaptation: Wontner films Episode: 1 Airdate: February 1931 IMDb: The Sleeping Cardinal Letterboxd: The Sleeping Cardinal Canon basis: The Final Problem Next: The Missing Rembrandt Cast Arthur Wontner as Sherlock Holmes Ian Fleming as Dr. John H. Watson Leslie Perrins as The Hon. Ronald Adair Minnie Rayner as Mrs. Hudson Philip Hewland as Insp. G. Lestrade Louis Goodrich as Col. Sebastian Moran Norman McKinnel as Prof. Robert Moriarty Jane Welsh as Kathleen Adair William Fazan as Thomas Fisher Charles Paton as J.J. Godfrey Gordon Begg as Marston, the butler Harry Terry as No. 16 Sydney King as Tony Rutherford