Andrea Fleig is one of the pre-made hostesses in Downtown from The Sims 2: Nightlife. The other two pre-made hosts are Joseph Ng and Katy Kimbrell. She can be made playable by befriending her and asking her to move in, or by marrying her.
Andrea has the same facial structure as Shanna Ajjanagadde. Her name is randomized when Downtown is generated. The name "Andrea Fleig" is only referenced in the game files. According to Andrea's SimDNA in SimPE, her hair was black before it turned grey.