Sherlock Holmes
The consulting detective whose observation, disguise, chemical knowledge, and controlled experiments solve the cases.
Dr. John Watson
Holmes's friend, chronicler, and frequent field companion — married and in practice for most of these cases, though several are narrated from his earlier bachelor days at Baker Street.
Irene Adler
The singer who anticipates Holmes's trap and retains the compromising photograph in 'A Scandal in Bohemia.'
Inspector Lestrade
A Scotland Yard detective who turns up in two of these cases, supplying official evidence or assistance.
Violet Hunter
The capable governess who calls Holmes into the dangerous Copper Beeches household.
Helen Stoner
The threatened client at the center of 'The Speckled Band.'
Jabez Wilson
The pawnbroker recruited into the fraudulent Red-Headed League.
John Openshaw
The client pursued by the senders of the five orange pips.
Henry Baker
The owner of the Christmas goose that unknowingly carries the Blue Carbuncle.
Neville St. Clair
A respectable husband whose secret profession produces an apparent disappearance.