First Full ‘Iron Fist’ Trailer Debuts as Sigourney Weaver Announced for ‘The Defenders’

Marvel teased that Sigourney Weaver will play a big role, but it’s being kept under wraps for now. “Marvel is honored to have an actress of her caliber and status join what is already our biggest show ever! She is by definition a class act,” said Jeph Loeb, Executive Producer and Head of Marvel Television. – Aaron Couch, The Hollywood Reporter