LOS ANGELES - Australian actress Markella Kavenagh has been cast in Amazon’s Lord of the Rings series, becoming the first person to sign onto the streamer’s mega-budgeted adaptation of J.R.R. Tolkien’s works.

Details of her role are being kept under wraps, but she will play a character named Tyra on the show, sources confirm to The Hollywood Reporter. Amazon paid $250 million in 2017 for the rights to Lord of the Rings in a deal with the Tolkien estate, publisher HarperCollins and New Line, which released Peter Jackson’s LOTR films. The show is set in Middle earth’s Second Age, when the titular Rings of Power were created and evil Lord Sauron came to power. JD Payne and Patrick McKay (Star Trek 4, Jungle Cruise) are developing the story, and J.A. Bayona (Jurassic World: Fallen Kingdom) is set to direct the first two episodes. Bayona and producing partner Belén Atienza will also serve as executive producers.