Stage and screen star Sigourney Weaver — currently seen in the flesh (and in blue flesh) as scientist Dr. Grace Augustine in "Avatar" — will host the Jan. 16 episode of "Saturday Night Live." She will be joined by musical guest The Ting Tings.
Weaver has appeared Off-Broadway in the world premieres of Crazy Mary and Mrs. Farnsworth. The actress, known for her film work in the "Alien" series, "Ghostbusters" and "Gorillas in the Mist," has also appeared onstage in Hurlyburly, The Mercy Seat and The Guys — which was directed by her husband Jim Simpson.