Katherine Zhang is one of the pre-made NPC bartenders who resides in Riverblossom Hills, the neighborhood shipped with The Sims 2: Seasons. The other two bartenders are Stephan Mendoza and David Creelman. She can be made playable by befriending and asking her to move in, or by marrying her. She has the same facial structure as Carmen Patch.
Katherine has short black hair, grey eyes, and tanned skin. Her Aspiration is Knowledge, and her zodiac sign is Sagittarius. As far as personality, Katherine is very playful, as well as being quite nice and active. But she is quite sloppy and shy. When it comes to her skill points, Katherine has maximized the charisma and logic skills.
She is mostly interested in Culture, Fashion, Crime, and Sports. There is no evidence that Katherine is related to the Veronaville burglar Sierra Zhang, or the townie Nikki Zhang. Sometimes if she is made playable, her PlumbBob will be inside her, instead of above her head. This happens with several other NPCs in The Sims 2.