Kaley Cuoco in The Big Bang Theory (2007)

Johnny Galecki and Jim Parsons in The Big Bang Theory (2007)

Kaley Cuoco, Johnny Galecki, and Brian Thomas Smith in The Big Bang Theory (2007)

Brian George in The Big Bang Theory (2007)

Melissa Rauch in The Big Bang Theory (2007)

Brian Thomas Smith and Lindsey Kraft in The Big Bang Theory (2007)

Lindsey Kraft in The Big Bang Theory (2007)

Johnny Galecki, Jim Parsons, and Kunal Nayyar in The Big Bang Theory (2007)

Johnny Galecki in The Big Bang Theory (2007)

Simon Helberg and Melissa Rauch in The Big Bang Theory (2007)

Mayim Bialik and Melissa Rauch in The Big Bang Theory (2007)

Mayim Bialik and Brian Thomas Smith in The Big Bang Theory (2007)

Kunal Nayyar in The Big Bang Theory (2007)

Kaley Cuoco and Johnny Galecki in The Big Bang Theory (2007)

Mayim Bialik, Kaley Cuoco, and Brian Thomas Smith in The Big Bang Theory (2007)

Mayim Bialik in The Big Bang Theory (2007)

Simon Helberg in The Big Bang Theory (2007)