Friends: 10 Best Characters Who Appeared After Season One

10. Erica

Erica actually holds the luxury of being the last recurring character to be introduced into the show, meaning she easily qualifies for this list and had a lot of pressure to live up to. Luckily, she fully pulled it off, as she was a delight to watch, and became the figure who kickstarted the new life of Monica/Chandler.

This character was introduced in the show's ninth season as the birth mother for the children Monica and Chandler were hoping to adopt. This instantly put her in an important position, as she held two of the most beloved figures' futures in her hands.

Although they got off to a rocky start, Erica eventually became another member of the family, as she spent plenty of time with the excitable adoptees, and fans got the chance to know her. She was ditsy, bubbly and optimistic, so watching her interact with the characters was hilarious.

In the end, Monica/Chandler even named one of the kids after her, proving just how big a part she played in the show's climax.