Feb. 22 (UPI) -- Natalie Dormer is joining the cast of Penny Dreadful: City of Angels.
Showtime confirmed in a tweet Friday the 37-year-old British actress will star in the new series.
"Natalie Dormer joins the next chapter of the @SHO_Penny saga, #PennyDreaful: City of Angels!" the network wrote.
Deadline said Dormer will play Magda, a supernatural demon with the ability to take on the appearance of anyone she chooses. The character appears in a number of different guises throughout the show.
City of Angels takes place in 1930s Los Angeles and features new characters and storylines. The story explores social and political tensions, and centers on a detective, Tiago Vega (Daniel Zovatto), following a grisly murder.
Dormer previously played Anne Boleyn in the Showtime series The Tudors. She is also known for portraying Margaery Tyrell in the HBO series Game of Thrones.