Sherlock: The Progressively Harder Who Said It Quiz

Sherlock The Abominable Bride
BBC

4. “You, Being All Mysterious With Your Cheekbones And Turning Your Coat Collar Up So You Look Cool.”

Mycroft

John Watson

Irene Alder

Moriarty
Contributor

Brian Uthar hasn't written a bio just yet, but if they had... it would appear here.