Saint - Germain is definitely an interesting one. Didn't some French singer in the seventies claim to be him?
Yes, some nutter named Richard Chanfray who later committed suicide: http://en.wikipedia....ichard_Chanfray
There is another good overview about the Count here: http://paranormal.ab...t-germain_2.htm
It's an entertaining read. Apparently, there are quite a few immortal celebs out there http://celebrities.ninemsn.com.au/slideshowajax/193066/immortal-celebrities.slideshow