| Major Barrymore |
|Affiliation||Baskerville Military Base|
|Occupation||Oversees Baskerville Military Base|
|Behind the scenes|
|Appearances||"The Hounds of Baskerville"|
|Portrayed by||Simon Paisley Day|
- "The big coat should have told me. You're one of the conspiracy lot, aren't you?"
- ―Major Barrymore to Sherlock in "The Hounds of Baskerville".
Major Barrymore is a British Army Officer. He is in charge of overseeing the Baskerville Military Base.