Robert Knox, an 18-year-old actor set to appear in the next Harry Potter film, was stabbed to death outside a London pub on Saturday.

Knox, who plays wizard Marcus Belby in “Harry Potter and the Half-Blood Prince,” sustained multiple stab wounds after becoming involved in an argument with two men who had threatened his 17-year-old brother Jaime. Five other males were sent to the hospital, including a 21-year-old who was arrested on suspicion of murder after being treated for facial injuries.

“Rob was kind and thoughtful and would always help out others—he would always spend his last penny on other people instead of himself,” parents Sally and Colin Knox said in a statement Sunday.

“The life and soul of the party, he was very outgoing, loved sports, and would always strike up a conversation with people. He was respectful to others and adored by all his family and friends. He was [an] asset to the family.”






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