Which book character had a lightning bolt scar on his forehead?

Harry Potter is a series of seven fantasy novels written by British author J. K. Rowling. The novels chronicle the lives of a young wizard, Harry Potter, and his friends Hermione Granger and Ron Weasley, all of whom are students at Hogwarts School of Witchcraft and Wizardry.

A scar on Harry Potter's forehead in the shape of a lightning bolt was the result of a failed murder attempt by Lord Voldemort on 31 October 1981, when he struck 15-month-old Harry with the Killing Curse. Harry was the only known person to survive the curse, surviving because his mother's loving sacrifice protected him. Unbeknownst to Voldemort, the incident also inadvertently made Harry into a Horcrux, as a piece of the Dark Lord's soul embedded itself in Harry.