Cynthia From Malibu Sands

Cynthia (played by Denise Richards) had a secret crush on Slater during the gang’s summer at the Malibu Sands beach club. She didn’t make her presence known, however, until the final day of the summer, faking a drowning in order to be rescued by her crush. At the end of summer luau it was revealed she’d be going to Bayside in the fall. If she did, she sure didn’t make her presence felt, because after the luau we never saw her again.

New Student Joanna

Joanna was the new girl in school at the start of the gang’s senior year, and both Zack and Slater wanted to go out with her. They each sabotaged each other’s dates, eventually leading to a fight. The BFFs made up after spilling punch all over each other at a party, and when it came to Joanna, we never saw her again.

Jessie and Kelly

Two of Bayside’s favorites, Jessie and Kelly, completely disappeared for part of their senior year with not a single word said about them. They were seemingly erased from the gang’s memory until their re-arrival just in time for graduation. How Zack was in danger of not graduating, while those two didn’t attend classes for half the year and were still in good academic standing, is one of Bayside’s great mysteries.