Jeremy Goode

Jeremy, played by Reece Shearsmith, featured only in the second series, is a schizophrenic librarian who is obsessed with the return of a particular overdue book entitled "50 Great Coastal Walks of the British Isles: Volume 2" by a woman who claims she has lost the copy. At times of stress, he sees his alter ego figure called the Silent Singer, a man dressed in strange attire with a blonde wig and sharp teeth who is always singing silently into his walking stick.

Series 2
After a week of the book not being returned, he sneaks into the woman's house at night and persuades her daughter to find the book for him. Having discovered that Jeremy has broken into her house, the woman talks to her and sends her mother out to walk the pet dog in the park. Jeremy finds her, snips the lady's hair off and, while she is distracted, steals the dog. He later calls the woman and demands the book back or the dog will be killed. Meeting in the park, she retrieves the dog and gives Jeremy the book, only to find that it "Volume 1" instead. He is promptly arrested by uncover police officers.

He is later interviewed by Detective Finney, who has "Volume 2" and starts to damage it, forcing Jeremy to talk. Jeremy was also a patient at Ravenhill who brought Kenchington her breakfast every morning. Reading the complicated equations on a her blackboard, he corrects a figure, balancing the equations, impressing Kenchington. They work on the equations together for months before Jeremy goes up for review. Having been cured and about to be released, Jeremy makes up the Silent Singer based on the appearance of a female patient walking past the window. They deny his release, allowing him to stay. However, the Silent Singer actually becomes real in his head and he is not released for seven years. He claims that the locket contains "the secret of eternal life" and does not tell Finney any more. When left alone in the interview room, Jeremy picks up the book but finds all the pages blank and appears to have a mental breakdown as a result.