John H. Watson, known as Dr. Watson, is a character in the Sherlock Holmes stories by Sir Arthur Conan Doyle. Watson is Sherlock Holmes' friend, assistant and often narrator of the stories.
In the cutaway, Holmes notes that red clay at the scene of the investigation came from a gay bathhouse. When Watson remarks on his knowledge, Holmes looks uncomfortable and passes it off as something gained from books and "stuff."
Watson is voiced by Cary Elwes.