Sherlock (2010)
Vital statistics
Sex Male
Nationality American
Affiliation CIA
Occupation Field Agent
Behind the scenes
Appearances "A Scandal in Belgravia"
Portrayed by Todd Boyce
"Mrs Hudson's been attacked by an American. I'm restoring balance to the universe."
Sherlock Holmes [src]

Neilson is a CIA field operative who interrogated Mrs Hudson. He was repeatedly thrown out a window by Sherlock Holmes in retaliation. He later meets Sherlock again and when the consulting detective asks how he is feeling, Neilson replies, "Like putting a bullet in your brain, Sir." and casually comments how he would get a medal if he did. [1]


  1. Moffat, Steven (writer) & McGuigan, Paul (director). (1 January, 2012). "A Scandal in Belgravia". Sherlock (2010). Series 2. Episode 1. BBC One.

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