News Sigourney Weaver, 73, talks teen character in ‘Avatar 2’: Older actors are ‘extraordinary’ December 17, 2022December 18, 2022Patrick Ryan, USA TODAYComments Off on Sigourney Weaver, 73, talks teen character in ‘Avatar 2’: Older actors are ‘extraordinary’ Sigourney Weaver returns in a new, younger role in the "Avatar" sequel. She hopes playing 14-year-old Kiri will send a message about Hollywood ageism.