Dr. David Underhill is a fictional character portrayed by Michael Trucco in the TV series The Big Bang Theory.
In the first episode they appeared in, titled The Bath Item Gift Hypothesis (season 2), they were 38 years old.
They appear in 1 episodes out of a total of 279 aired
Episodes1
The Bath Item Gift Hypothesis
episode S2.E11 december 2008Leonard is disappointed when Penny develops an interest in an attractive physicist at the university. Meanwhile, Sheldon struggles to find an appropriate Christmas gift for Penny.