An 18 year-old actor has died following a fight in London in which three other men were stabbed and another suffered injuries to his face.
The parents of Rob Knox who had a part in the new Harry Potter film paid tribute to their son.
Sally and Colin Knox, of Maidstone Road, Sidcup, said their son Rob, 18, was "the life and soul of the party".
In a statement they said: "Rob was kind and thoughtful and would always help out others - he would always spend his last penny on other people instead of himself. 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."
Rob, who plays Ravenclaw student Marcus Belby in the forthcoming Harry Potter film
Harry Potter And The Half-Blood Prince, was killed in a fight outside the Metro Bar, Station Road, Sidcup.
A man came to the bar armed with two knives and was seen waving one of them around through the window. A scuffle broke out outside just after midnight, and four teenagers as well as Rob were injured.
He and his brother Jamie were reportedly trying to protect each other during the fight.
Their friends Tom Hopkins, 18, and Tarik Ozress, 17, managed to pin the armed man down, wrestling with him for several minutes before police arrived.
Tom, who plays football for Southend United youth team, was stabbed in the head during the struggle.
He said: "Rob was just trying to help out. He was like that. I grabbed the knife, I didn't know at the time that he had another knife. It was just chaos."
Rob was taken to Queen Elizabeth Hospital and was pronounced dead around 1am. A 21-year-old man was stabbed in the neck and remains in hospital.
PA