Girl #1 is a fictional character portrayed by Piper Mackenzie Harris in the TV series The Big Bang Theory.
In the first episode they appeared in, titled The Contractual Obligation Implementation (season 6), they were 13 years old.
They appear in 1 episodes out of a total of 279 aired
Episodes1
The Contractual Obligation Implementation
episode S6.E18 march 2013Leonard, Sheldon and Howard give lectures on science to junior high students. The girls ditch work to go to Disneyland. Raj devises a date for Lucy that fixes their social anxiety problems.