Alison Lash, played by Sarah Melson, was a recurring character seen on Beverly Hills, 90210, the first series of the Beverly Hills, 90210 continuity. She appeared in Season 5.

Alison was a lesbian woman who attended a rave thrown by Steve Sanders and Griffin Stone. After David Silver and Clare Arnold posted the invitation in the wrong online forum, that being the women seeking women forum, Alison and many other lesbian women showed up to the party.

Alison had a girlfriend named Dana who attended the party with her. However, during the course of the party, the building caught fire and Alison found herself trapped in the basement with Kelly. Both were burned, but Alison was burned badly and spent a significant amount of time going through rehabilitation and had multiple skin grafts.

During the course of her recovery, she broke up with Dana and claimed that she was in love with Kelly. Her presence in the Season 5 finale earned Kelly the ridicule of her friends, leaving them all wondering whether Kelly had become a lesbian herself. After accepting that Kelly wasn't into women, Alison went on with her life.

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