Tiffani Thiessen
Tiffani Thiessen (born Tiffani Amber Thiessen January 23, 1974) is an American actress. She played Kelly Kapowski on Saved by the Bell and Valerie Malone on Beverly Hills, 90210. She also starred in Fastlane as Wilhelmina 'Billie' Chambers. From 2009 to 2014, Thiessen played the role of Elizabeth Burke in the USA Network series White Collar.