Tobias Gregson, a Scotland Yard inspector, is a fictional character who has appeared in several novels and short stories based on Sherlock Holmes, including "The Adventure of Wisteria Lodge" and "The Adventure of the Red Circle".
Tobias Gregson, a Scotland Yard inspector, is a fictional character who has appeared in a number of the Sherlock Holmes novels and short stories by Arthur Conan Doyle. He was first introduced in "A Study in Scarlet"; his other appearances include "The Adventure of Wisteria Lodge" and "The Adventure of the Red Circle".