Simon Helberg and Kunal Nayyar in Big Bang (2007)

Mayim Bialik and Jim Parsons in Big Bang (2007)

Kaley Cuoco, Johnny Galecki, Simon Helberg, Kevin Sussman, Jim Parsons, Melissa Rauch, and Kunal Nayyar in Big Bang (2007)

Johnny Galecki, Simon Helberg, and Jim Parsons in Big Bang (2007)

Johnny Galecki, Simon Helberg, Jim Parsons, and Kunal Nayyar in Big Bang (2007)

Kaley Cuoco and Johnny Galecki in Big Bang (2007)

Simon Helberg and Kevin Sussman in Big Bang (2007)

Mayim Bialik, Kaley Cuoco, and Kunal Nayyar in Big Bang (2007)

Kaley Cuoco, Johnny Galecki, and Kunal Nayyar in Big Bang (2007)

George Takei, Simon Helberg, Katee Sackhoff, and Melissa Rauch in Big Bang (2007)

Simon Helberg and Katee Sackhoff in Big Bang (2007)

Mayim Bialik, Kaley Cuoco, Johnny Galecki, Simon Helberg, Jim Parsons, Melissa Rauch, and Kunal Nayyar in Big Bang (2007)

Jason Kravits, Kaley Cuoco, and Melissa Rauch in Big Bang (2007)

Wil Wheaton, Mayim Bialik, and Jim Parsons in Big Bang (2007)

Sean Astin, Mayim Bialik, Kal Penn, and Jim Parsons in Big Bang (2007)

Mayim Bialik, Kaley Cuoco, Johnny Galecki, and Jim Parsons in Big Bang (2007)

Simon Helberg and Kurt Scholler in Big Bang (2007)

Kathy Bates and Jim Parsons in Big Bang (2007)

Johnny Galecki and Kunal Nayyar in Big Bang (2007)

Kaley Cuoco and Jim Parsons in Big Bang (2007)