When a bored Sherlock eagerly takes the case of Gabrielle Valladon following an attempt on her life, the search for her missing husband leads to Loch Ness and the legendary monster.
Sherlock Holmes
Dr. John Watson
Gabrielle Valadon
Mycroft Holmes
Madame Petrova
Nikolai Rogozhin
Mrs. Hudson
Queen Victoria
Gravedigger
Woman in Wheelchair
Von Tirpitz
Cabby
Guide
First Carter
Second Carter
Hotel Manager
Baggageman
Porter
Monk
Inspector Lestrade
Madame
