Anna Maureen Barth Shaffer is an English actress. She gained prominence through her roles as Romilda Vane in the Harry Potter films (2009–2011) and Triss Merigold in the Netflix adaptation of The Witcher (2019–2026).
Set during Deathly Hallows, the story of how Ginny, Luna and Neville protected the students at Hogwarts during the year the school was controlled by Voldemort's sadistic Death Eaters, and reconstituted Dumbledore's Army as an underground resistance.