Carol Willick – Friends

For only a single episode of Friends, the ex-wife of Ross, Carol, was played by actress Anita Barone. Her role was extremely important in the storyline of the show, as Ross found out he was going to be a dad to the yet-to-be-born Ben during that episode.

Barone opted out of the role in order to pursue more full-time acting gigs, which may have been a poor choice due to the residual income the show still generates. Jane Sibbett replaced her as the new Carol.