Joel didn't believe that Rachel (from Friends) is a jewish character. Let's analyze this:
-- Originally engaged to orthodontist.
-- from Long Island -- childhood friend of Monica's
-- original hook for character was a fish out of water -- spoiled Long Island girl now has to make living on her own in big city

I am not the only one who thinks this.
Rachel is a Jewish character played by non-Jewish actress Jennifer Aniston.

A Warner Bros. spokesperson revealed that "the religion of the characters on 'Friends' has never been established, but viewers can make the educated guess that Monica and Ross are half Jewish and that Rachel and her ex-fiance Barry are Jewish."