Jeri Ryan as Sherri
Sherri was the kind of girl that serial womanizer Charlie had never encountered before. She played hard to get, constantly leading Charlie on. However, because he was considered the one being used, Charlie decided he wanted to seek revenge. This ultimately led to their downfall. Sherri was basically the female version of Charlie and almost dated Alan, but he didn’t like that she was with Charlie before. Sherri ended up getting sick of the lifestyle and doesn’t appear anymore on the show.
Source: Wikipedia
Jeri Ryan is a German-born American actress who is best known for her role on Star Trek: Voyager, for which she received four nominations for a Saturn Award. She is also known for her performances on television series such as Boston Public, Dark Skies, and Shark.