It's been 20 years since "Star Trek: The Next Generation" aired its final episode on May 23, 1994. With two decades having passed since the show left the airwaves, take a look at where its stars are today.
Denise Crosby played Lieutenant Tasha Yar, chief of security and tactical officer, during the show's first season. She left the show after the first season, with her character being killed off. However, Yar returns in alternate timelines in a third season episode and in the series finale. Crosby also played Sela, Yar's half-Romulan daughter.