TV Series : THE BIG BANG THEORY  (2007 - )

Guest appearance: In The Big Bang Theory, Summer Glau plays herself.
Summer Glau guest stars on The Big Bang Theory
Summer Glau guest stars on
CBS's sitcom The Big Bang
Series plot summary : The show is centered on five characters: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress and aspiring actress who lives across the hall; and Leonard and Sheldon's equally geeky and socially awkward friends and co-workers, mechanical engineer Howard Wolowitz and astrophysicist Raj Koothrappali. The geekiness and intellect of the four guys is contrasted for comic effect with Penny's social skills and common sense
Creator : Chuck Lorre, Bill Prady
Network : CBS
Genre : Sitcom | Romance
Production credits :   Chuck Lorre Productions, Warner Bros. Television 
Cast : 
Jim Parsons: Sheldon Cooper
Johnny Galecki: Leonard Hofstadter
Kaley Cuoco: Penny
Simon Helberg: Howard Wolowitz
Kunal Nayyar: Raj Koothrappali
Summer Glau as herself in TBBT
Summer Glau as herself in TBBT.

Season 2, Episode 17  'The Terminator Decoupling'

Original air date: Mars 9, 2009
Episode plot summary: A train trip to a symposium in San Francisco takes a major detour when Leonard, Sheldon, Howard and Raj realize Summer Glau (guest starring as herself) of Terminator: The Sarah Connor Chronicles is on board. The guys debate on how to talk to Summer and who goes first. Leaving his shyness behind while drinking beer, Raj is the first to approach Summer. However, when the beer turns out to be non-alcoholic, Raj reverts to his usual timid self. Howard then takes over, but creeps Summer out with his wild dreams. Leonard eventually gets his chance, but Summer gets off the train before he can introduce himself.
Director: Mark Cendrowski
Writers:  Chuck Lorre, Bill Prady
Guest cast : 
Summer Glau: As herself
Dr. George Smoot: As himself

Links: Pictures - Videos - Forum Thread

Trivias :
  • A FOX star - Summer Glau - going on CBS to effectively plug her role on said FOX show seems a little unusual, but both "Big Bang Theory" and "Terminator: The Sarah Connor Chronicles" are Warner Brothers TV productions. Bill Prady, one of the creators of The Big Bang Theory, presented the script of the episode to Josh Friedman, creator of "Terminator: The Sarah Connor Chronicles" with the plan of casting Summer Glau as herself. (Friedman, impressed with the story, suggested it to Summer Glau).
  • Ratings: On the night of its first broadcast on March 9, 2009, the episode was watched by 9.46 million households, according to Nielsen ratings. The episode received a 3.6 rating/10 share among viewers aged between 18 and 49, and a 2.4 rating/8 share among viewers between 18 and 34.
  • Kaley Cuoco has no scene with Summer Glau on TBBT but she posed for a BTS shot with Summer & the boys. 

Behind-The-Scenes shot with Kaley Cuoco, Summer Glau and the boys on set of The Big Bang Theory.

  • Summer Glau about how Fictional Summer Glau differs from Real Life Summer Glau: "They're very different. I think that I was playing myself, but I was trying to be funny, they tried to make me funny. I was nervous, because it's supposed to be about how I respond to people who know my work as Cameron, so I was concerned about how people might perceive that. But I was honored to work with such talented actors."