The Hollywood Reporter
published a "where are they now" summary of Serenity's Cast titled : Joss Whedon's 'Firefly' Crew, Flying High Ten Years Later
Here's Summer Glau's paragraph :
"If, ten years ago, you would have told the superfans who were calling themselves Browncoats that the stars of their beloved and -- just-canceled -- space western Firefly would one day be at the top of the Hollywood food chain, you'd have gotten plenty of crazy looks. But today, you could also be teasing, "I told you so.""
"Summer Glau, Simon's damaged and mysterious sister, has guest starred in two episodes of Grey's Anatomy this season, and will star with Game of Thrones star Peter Dinklage in the film Knights of Badassdom."