23 TV Characters Recast After The Actor Quit the Show
Carol Willick (Friends)
Ross’s ex-wife on Friends doesn’t play a huge role on the series, but it is a pivotal one. Her decision to leave Ross for Susan is the reason Ross and Rachel happened at all. On the first season, Carol is played by Anita Barone for a single episode. From then on, she was replaced by Jane Sibbett.
Reportedly, Anita left the show in order to take larger parts in other projects. Considering the huge success that Friends went on to become, it may have been the wrong move. A small part on a legendary show is better than nothing.