|Appearances||The Reichenbach Fall|
|Portrayed by||Katherine Parkinson|
- "There's all sorts of gossip in the press about you. Sooner or later, you're going to need someone on your side. Someone to set the record straight."
- ―Kitty Riley, "The Reichenbach Fall"
Kitty Riley is an investigative journalist appearing in the final episode of Season Two: "The Reichenbach Fall".
Riley tries to get her first big scoop by interviewing Sherlock Holmes. She approaches him to test his prowess at first, and then she leaves her card with him; however, Sherlock leaves her with three words: "You repel me."
Later on, she is tricked by Jim Moriarty, who was pretending to be an actor that was hired by Sherlock to play a criminal mastermind. She fully believes his act and publishes her first big scoop using the information he provided.