Tiffani Thiessen (born Tiffani-Amber Thiessen; January 23, 1974) is an American actress best known for her roles as Kelly Kapowski in Saved by the Bell and as Valerie Malone in Beverly Hills, 90210. She is also known for her role on Fastlane as Wilhelmina 'Billie' Chambers. As of 2009, she plays the role of Elizabeth Burke, in White Collar. After many years of going by her full name, Tiffani-Amber Thiessen, she is now credited as simply Tiffani Thiessen.
Description above from the Wikipedia article Tiffani Thiessen, licensed under CC-BY-SA, full list of contributors on Wikipedia.
as Miss Graves
as Miss Graves(10 eps)
as Self (archive footage)(1 ep)
as She-Hulk (voice)
as Self - Host(60 eps)
as Kelly Kapowski-Morris(7 eps)
as Self(1 ep)
as Lori Mendoza(39 eps)
as Self(1 ep)
as Celeste(1 ep)
as Self - Host(25 eps)
as Chelsea
as Self(1 ep)
as Self(2 eps)
as Self(2 eps)
as Misty the Wonderful Witch (voice)(1 ep)
as Elizabeth Burke(81 eps)
as Self - Guest(2 eps)
as Lindsey Reardon
as Kayla Martin(2 eps)
as Self(1 ep)
as Natasha Drew(5 eps)
as Self - Restaurant Patron(1 ep)
as Victoria Hill(11 eps)
as Wilhelmina Chambers(22 eps)
as Sharon Bates
as Vixen (voice)
as Hagitha Utslay
as Honey DeLune
as Marie Stein
as Rebecca Melini / Juliette
as Wilma Price
as Marti(9 eps)
as Self(1 ep)
as Amy(3 eps)
as Annalisse Vellum
as Alison Sullivan
as Self(2 eps)
as Caitlin Rose
as Jennifer Gallagher
as Foxy Jackson(1 ep)
as Kelly Kapowski
as Andrea Pierce(1 ep)
as Self - Guest(3 eps)
as Tracy
as Kelly Kapowski(19 eps)
as Jenny Monroe
as Kelly Kapowski
as Tina Gordon(1 ep)
as Valerie Malone(131 eps)
as Kelly Kapowski
as Kelly Kapowski(86 eps)
as Heather McCoy(1 ep)
as Jennifer(1 ep)