7. Rob Knox (Age 18)

Rob Knox began acting at 11 and appeared in The Bill, After You’ve Gone, and King Arthur. He gained wider recognition as Marcus Belby in Harry Potter and the Half-Blood Prince. He was described as kind, thoughtful, and outgoing, with a passion for sports.
Rob was tragically stabbed to death at 18 outside a bar in London while protecting his brother from an armed attacker. The assailant was sentenced to life imprisonment. His family and fans remember him as a promising young talent whose life was cut short senselessly.