Quinn Fabray
"Big Brother" is the fifteenth episode and spring premiere of the third season of the American musical television series "Glee", and the fifty-ninth overall. Written by Michael Hitchcock and directed by Eric Stoltz, the episode first aired on Fox in the United States on April 10, 2012. It features the introduction of special guest star Matt Bomer as Blaine Anderson's (Darren Criss) elder brother Cooper, and the revelation of how badly injured Quinn Fabray (Dianna Agron) had been in the automobile accident that had ended the previous episode, "On My Way".