Marvel’s head of TV Jeph Loeb just announced that Sigourney Weaver will be the main villain in Netflix’s The Defenders. The surprise reveal was made here at New York Comic Con, where fans got to see Weaver come onstage next to the Defenders themselves, Charlie Cox, Finn Jones, Krysten Ritter, and Mike Colter.

We don’t know what villain Weaver will play, but the casting is obviously big news. As essentially the first lady of sci-fi, Weaver is iconic for her roles in Ghostbusters, Avatar, and obviously the Alien series. We’re looking forward to whatever it is she does.