Happy birthday to actress Denise Crosby, best known as as Security Chief Tasha Yar from Star Trek: the Next Generation. Crosby also has a recurring role on Showtime's series Ray Donovan and portrays Mary in AMC's The Walking Dead. Our Collector's Treasure of the Day is this 8 x 10 inch color photograph from Star Trek that has been hand-signed in person by Crosby. Very fine condition. Authenticity guaranteed for life by Collector's Shangri-La.