Tiffani Amber Thiessen 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 starring in Fastlane as Wilhelmina 'Billie' Chambers, as well as for her current role of Elizabeth Burke in the USA Network television series White Collar.
After many years of going by her full name, she dropped her middle name and is now credited as simply Tiffani Thiessen.
She grew up in Long Beach with her parents and her brothers, professional cyclist Todd (born August 1, 1968) and Schuyler (born May 10, 1977).
When Tiffani was 8, her uncle, Roger Ernest, suggested that she try acting and modeling.
Soon afterward, she appeared in her first TV commercial, for Peaches and Cream Barbie.
From there she started competing in several beauty pageants and, in 1987, she won the Miss Junior America pageant.
She got her big break when she was cast as the popular cheerleader Kelly Kapowski on the NBC series Saved by the Bell (1989), which lasted for five years. Here, she played the constant enemy of Kelly Taylor, played by Jennie Garth, although in real life, the two are actually best friends.
Tiffani also lived with co-star Brian Austin Green for several years.
She stayed with the show until 1998 and then left to pursue her movie career.
In 2003, Tiffani broke off her engagement to Richard Ruccolo and in 2005, she married actor Brady Smith.
The couple have two children, a daughter, Harper Smith (Harper Renn Smith) and a son, Holt Fisher Smith.