Just one question this time, FoLCs. How old is Bernie Klein, do you think?
30's? 40's? 50's?
seeing as the good Dr is made into management in the 4th season,
and given the immense time-frame it takes for anyone to first go through premed, then med-school, then internship/ residency, followed by specialisation and practising for a number of years,
ALL before then going on to become such a noteworthy scientist...
also...given his relationship with the girl (named?-who looked in her late 20;s/early 30's) in the end of S4
I predict that Klein would be at least in his late 40's if not early 50's...
According to IMDB, the actor's birthdate was 09-04-1941.
This would make him in his mid 50's during Seasons 3-4