Adam Turns is a British actor.
After Arya fails to kill Lady Crane on the orders of the Faceless Men, the Waif is sent to kill both of them. The Waif manages to stab Arya but Arya gets away and ends up convalescing in Lady Crane's bedroom. The Waif, now disguised as a man, enters Lady Crane's room and kills her. This causes Arya to wake-up and flee with the Waif closely behind.