Gillian Anderson will forever be remembered first and foremost as Agent Dana Scully onThe X-Files(viaDaily Mail).

More recently she has made headlines for hercontroversial role as Margaret Thatcherin Netflix’sThe Crown.

Namely, the now 52-year-old passed on parts in two shows that basically everyone watched.

Gillian Anderson

That’s right we could have seen Gillian Anderson on the iconic HBO series, or inDownton Abbey.

And you won’t believe what part she was approached to play.

It’s not that Anderson isn’t a fan of British period drama quite the opposite in fact.

Elizabeth McGovern

She has appeared in several similar projects, includingThe Fall, andGreat Expectations(viaIMDb).

But perhaps her age had something to do with her decision to say “no” toDownton.

Anderson is only 13 years older than Michelle Dockery, who played Mary, the eldest daughter.

McGovern is severn years older than Anderson.