Fan Casting Lillith Brynhild in Nightingale

Cara Delevingne as Lillith Brynhild: The last of the Nightingales and a vampire warrior who was once a malevolent queen and assassin until she renounced her crimes and became almost pacifistic, with the exception of her willingness to kill her enemies. Her powers include the obvious abilities to turn into a bat, drink blood to stay alive, and turn invisible, and, because of being an ancient vampire, some additional ones that include a near-invulnerability to the Sun and immunity to both the holy water and holy cross.