Johnny Galecki and Sara Rue in The Big Bang Theory (2007)

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

Simon Helberg, Jim Parsons, and Kunal Nayyar in The Big Bang Theory (2007)

Johnny Galecki in The Big Bang Theory (2007)

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

Simon Helberg and Jim Parsons in The Big Bang Theory (2007)

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

Simon Helberg and Kunal Nayyar in The Big Bang Theory (2007)

Johnny Galecki and Simon Helberg in The Big Bang Theory (2007)

Simon Helberg in The Big Bang Theory (2007)

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

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

Kaley Cuoco, Simon Helberg, Jim Parsons, and Kunal Nayyar in The Big Bang Theory (2007)

Kunal Nayyar in The Big Bang Theory (2007)

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

Kaley Cuoco in The Big Bang Theory (2007)

Jim Parsons in The Big Bang Theory (2007)

Jim Parsons in The Lizard-Spock Expansion (2008)