Sheeri Rappaport is a vixenish, dark-featured, deceptively doe-eyed actress who rose through the ranks of TV and indie cinema on the strength of her troublemaking teen persona. With a bit of age, however, she's matured into roles of tech-savvy procedural professionals and sincere but sharp and quippy women. After making her debut as a snobby houseguest on an episode of the quirky Nickelodeon sitcom "Clarissa Explains It All," she became a familiar recurring face among the various in crowds of the sudsy teen-drama boom on 1990s television. In '96, her mean girl image came to a head when she landed the lead role of a beguiling, ruthlessly manipulative Catholic schoolgirl in the macabre, low-budget horror film "Little Witches." Still, with her 20s on the horizon, Rappaport began looking for a change of pace, and she found just that when she landed simultaneous recurring roles on two of TV's hottest crime dramas. While her stint on the button-pushing procedural mainstay "NYPD Blue" lasted only one season, her introduction to the then-freshman forensics thriller "CSI: Crime Scene Investigation" led to her intermittently appearing as the show's quick-witted, delightfully caustic lab technician Mandy Webster for over a decade. In addition to indie films such as the star-studded crossover hit "Seeing Other People" (2004), she frequently appears in the inventive short films of budding movie-makers, namely the drolly comedic Superman-in-crisis romance "Losing Lois Lane" and the seriocomic revenge tale "The Vision," in which she showed flashes of her old provocative persona.