Since 2016, Newton has played the sentient android, the madam Maeve Millay, in the HBO science fiction-western series "Westworld", for which she earned a Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series and two Critics Choice Awards, as well as Golden Globe Award, Saturn Award, and Screen Actors Guild Award nominations. In 2017, she portrayed DCI Roz Huntley in the BBC drama series "Line of Duty", which earned her a nomination for the British Academy Television Award for Best Actress.