Natasia Demetriou is a British actress. She co-wrote and starred in the sketch show Ellie & Natasia with Ellie White. Demetriou is best known for her portrayal of Nadja in the comedy horror series What We Do in the Shadows. She has also appeared in the series Stath Lets Flats and Kite Man: Hell Yeah!, where she worked with Kaley Cuoco and Keith David.