Terry Gilliam is the only American who was a member of Monty Python.
He didn’t appear in too many Python sketches, but was instead the creator of the distinctive Python animated bits that appeared between acts and during each show’s opening titles.
Terry Gilliam also achieved success as a director.
Gilliam is now a British citizen. (I suppose he is a dual citizen).
I feel a bit of sympathy for these Pythons (Cleese is another who has gotten in a bit of trouble for saying London was “no longer an English city”).
They made their hay being sarcastic, and funny, lefties, spoofing the crusty old-world British aristocracy - and now (though still being insufferable, though still funny, lefties), they are in the unenviable position of being persecuted for pointing out the (obvious) excesses that are the result of the success, in the cultural sphere, of the very leftism that they spent their lives championing.
Unintended consequences are a bitch. But then, adherence to a mathematically false* philosophy of life (leftism) has predictable consequences.
*Any philosophy the implementation of whcih results in 100+ MILLION deaths and near-universal poverty in every nation that has implemented it can rightly be called “mathematically false”.