Not Chandler. Because Matthew Perry who played that role is equally sarcastic and funny in reality. He even wrote down most of his sarcastic lines for Chandler.
Not Rachel. Because Jennifer Aniston who played her character is a fashion diva in reality too. Her larger than life image is equivalent to her onscreen character Rachel.
Not Monica either because Courteney Cox who played that role isn’t much liked by fans as much as her onscreen character Monica has been hated by many. No wonder, she doesn’t remember being a part of many episodes in this series. And we’re supposed to believe that? Lol.
Not Ross because David Schwimmer who played that role made this character closest to reality. Schwimmer is just like his onscreen character Ross. He even pranks his fans by sometimes using his pseudo name Snaro.
Not Joey either because Matt LeBlanc who portrayed this character is so much funny in reality too. All these aforementioned friends found it much easier to play their respective roles because they brought a part of their real life into their respective characters.
But hey, there’s another beloved friend in this group. It’s Phoebe Buffay. Yes, this sweet weird girl who sometimes gave headaches with her weird remarks and thoughts is completely different from the lady who played her character.
Lisa Kudrow. She’s a highly educated lady compared to her onscreen character Phoebe. Kudrow did her graduation in Biology from Vassar College. She worked with her father who’s a specialist in headaches. Kudrow’s character would be completely different from her onscreen character Phoebe.
She played this weird character for millions of episodes. Just imagine how difficult and different it was for her to play this role. Much love and regards. Image maybe subject to copyrights.