Glau, Summer
From The Big Bang Theory Wiki
Actress who appears as herself in The Terminator Decoupling.
She is best known for her roles in the two science fiction TV-series Firefly and "Terminator: The Sarah Connor Chronicles", both of which the guys know and watch (0110, 0201, 0217).
While on the way to a conference in San Francisco the guys meet her in a train and all, except for Sheldon of course, try to start a conversation with her.
Interviews:
Summer Glau talks about her experience on the set of the show [1].
Bill Prady talks about getting her on board for one episode [2].
