Entertainment Movies 'Avengers ' Star Karen Gillan Reveals the Words of Encouragement Stan Lee Gave Her While on Set Karen will continue her role as Nebula in Avengers: Endgame. By People Staff Published on December 14, 2018 06:45 PM Share Tweet Pin Email Karen will continue her role as Nebula in Avengers: Endgame.<i>PEOPLE Now</i> airs live, Monday through Friday, from the Meredith offices in New York City.Catch <i>PEOPLE Now</i> every weekday at 12:00 p.m. ET/9 a.m. PT on <a href=”https://people.com”>http://People.com</a> or on the <a href=”https://peopletv.com”>PeopleTV</a> app on your favorite streaming device. Want even more? Check out clips from <a href=”https://people.com/tag/people-now”>previous episodes</a> of <i>PEOPLE Now</i>.