Sebastian Moran
From Tardis Wiki, the free Doctor Who reference
Colonel Sebastian "Sebe" Moran was one of the few individuals who knew that Sherlock Holmes was still alive in 1893. (AUDIO: The Adventure of the Diogenes Damsel)
In the City of the Saved, Remakes of Sherlock Holmes and John Watson encountered a thin man with a pointed beard who they thought resembled Moran. (PROSE: Eliminating the Impossible)
