Name: The Adventure of the Thames Monster
Released: Tuesday, March 12, 1985
Cast: Larry Moss, Lewis Arquette, Patricia Parris, Hamilton Camp, Lewis Arquette

Episode

The Adventure of the Thames Monster

Adaptation: Sherlock Hound
Episode: 17
Airdate: 12 March 1985
IMDb: The Adventure of the Thames Monster (link not verified)

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Next: The Adventure of the Three Students

Cast
Larry Moss	as Sherlock Hound
Lewis Arquette	as Dr. John H. Watson
Patricia Parris	as Mrs. Hudson
Lewis Arquette	as Insp. G. Lestrade
Hamilton Camp	as Prof. James Moriarty
Lewis Arquette	as Smiley
Larry Moss	as Todd