Guest Star: Craig Welzbacher
You are viewing a list of Craig Welzbacher's 1 appearance on The Big Bang Theory.
Season 9, Episode 4 - The 2003 Approximation
Aired October 12, 2015
When Sheldon learns that Leonard has moved out and is now living with Penny, he reverts to 2003 - a simpler time before he met Leonard and Penny. Howard and Raj form a folk sci-fi band to play live music at Stuart's Comic Book Store.
Appeared as Candidate #1