Mrs. Hudson

Mrs. Hudson is supposedly the cook of Dorian Wormwood the retired stage actor. Actually, she is Wormwood in disguise.

Physical appearance
She has gray hair and wears a chef's cap.

Personality
She seems to have a strong dislike for Ronald Adair, and accuses him of the murder.

Scooby-Doo, Where Are You? (DC Comics)
The fact that the name 'Mrs. Hudson' is the same as the landlady of Sherlock Holmes is no coincidence. All the names were picked for associations with Holmes, as clues.

Appearances

 * Scooby-Doo, Where Are You? comic series by DC Comics
 * The Strange Case of Dorian Wormwood