10 child stars who tragically died very young (With Pictures)

17. Rob Knox

You may not remember who the character Marcus Belby was in the Harry Potter movies, but he was played by the British actor Rob Knox. Rob appeared in Harry Potter and the Half-Blood Prince and was scheduled to be in the final movie as well. Unfortunately, he passed away before that could happen. Knox was stabbed during a fight in the Sidcup section of London. He was jumping in to defend his brother, but he ended up being killed instead. In his honor, an annual film fest was created, aptly called the Rob Knox Film Festival. There is also a Rob Knox Foundation.