Harry Potter is a fictional character, a boy wizard created by British author J.K. Rowling. His coming-of-age exploits are the subject of seven enormously popular novels. The books were transformed into a blockbuster series of eight films released over 10 years, which grossed more than $7 billion worldwide. On film, Harry Potter was portrayed by Daniel Radcliffe, at the time a relatively unknown child actor. His friends Ron and Hermione were played by Rupert Grint and Emma Watson, respectively. Voldemort was played by Ralph Fiennes, and his followers included Tom Felton as Draco Malfoy and Helena Bonham Carter as the mad witch Bellatrix Lestrange, among others.

Source: Britannica