See: LeBlanc, Matt Cox, Courtney Perry, Matthew
http://doppels.proboards.com Jennifer Aniston was replaced in the middle of season 5 of Friends. I suspect the reason why is because Courteney Cox had been replaced in the summer of 1998 (the summer before season 5) and this was difficult for Aniston to accept. So she wanted out. That's a plausible scenario.
Eye (all seeing signs)
Look alikes Streisand, Barbra
Aniston, Jennifer Reptile eyes (slits) http://youtu.be/NgxOvNWwy3A 1996 Golden Globes Awards
After her marriage to BRAD (FRAD?) PITT