Molly Hooper works in the morgue at St. Bartholomew's Hospital in London and has a huge, obvious crush on Sherlock Holmes, which he often exploits when working on cases. She is mousy and insecure and remains infatuated with Sherlock no matter how many times he insults her by being overly honest.For a brief time she dates a coworker, Jim, who works in the IT department. She brings him around in front of Sherlock to get his attention, but Sherlock infuriates her by saying Jim's gay. Sherlock is wrong, but Jim is not what he seems.Despite Sherlock's poor treatment of her, she is unfailingly loyal to him and trusts him completely. He turns to her for help at a crucial time.Background: She is 31 years old and has a cat named Toby.