Scarlett Byrne is an English actress. She debuted in 2008, appearing in an episode of the British series Doctors. The following year, she made her cinematic debut as Pansy Parkinson in the film Harry Potter and the Half-Blood Prince. She reprised her role in the sequels Harry Potter and the Deathly Hallows – Part 1 and Harry Potter and the Deathly Hallows – Part 2. Afterward, she starred in the TV film Lake Placid: The Final Chapter. From 2014 to 2015, she became known for her role as Alexis “Lexi” Glass-Mason in the TNT series Falling Skies. Following this, she played recurring character Nora Hildegard in The Vampire Diaries. In 2017, she starred in the film Skybound.