Harold Finch is a fictional character from the television series Person of Interest. He is a reclusive billionaire and a brilliant computer programmer who created a supercomputer known as The Machine. This machine analyzes vast amounts of data to predict violent crimes before they occur, allowing Finch to intervene and save lives. In the series, Finch partners with former CIA operative John Reese to prevent these crimes. Despite his wealth and intelligence, Finch often struggles with the moral implications of his creation and the responsibility that comes with it. His character embodies themes of privacy, surveillance, and the ethical use of technology.