Viewers saw an amazing progression in Caitlin FitzGerald’s Libby Masters, from housewife to hippie over the four seasons that "Masters of Sex" ran on Showtime.

But FitzGerald says the experience that has stuck with her the most over the two years since the show’s finale is Libby’s time in a nudist colony: “I’m probably one of the few actors on the planet who’s gotten to work with 150 naked people for a couple of days straight. So whatever happens in my career, I have that.”

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