Tiffany Thiessen, born Tiffani Amber Thiessen on January 23, 1974, in Long Beach, California, is an American actress best known for her roles as Kelly Kapowski on NBC's "Saved by the Bell" and Valerie Malone on Fox's "Beverly Hills, 90210."

Her early career was marked by her success as a teen idol in the 1990s, but she has continued to work steadily in television and film. Her parents, Robyn and Frank Thiessen, played significant roles in her upbringing, with her father being a park designer and her mother a homemaker.

She has credited her brother Todd as a major source of inspiration in her life. Thiessen's heritage is diverse, with German, Greek, Turkish, and Welsh roots.

Her lifestyle reflects her commitment to health and wellness. She is a fitness enthusiast, often engaging in rigorous workouts and ice bathing, which she finds beneficial for both physical and mental health.

Tiffany Thiessen is married to actor Brady Smith, and they have two children, Harper and Holt. She has been open about the challenges of balancing her career and family life, especially during her children's early years.

Her career has been diverse, spanning various genres and formats. After her breakout roles in "Saved by the Bell" and "Beverly Hills, 90210," she appeared in several films, including "Son in Law," "Speedway Junky," and "From Dusk Till Dawn 2: Texas Blood Money."

She also took on roles in TV series such as "Fastlane," "What About Brian," and "White Collar." Her versatility as an actress is further demonstrated by her work as a host on the Cooking Channel's "Dinner at Tiffani's" and MTV's "Deliciousness." In addition to her acting career, she has authored two cookbooks and runs a lifestyle blog.

Tiffany Thiessen has received several accolades, including a Daytime Emmy Award nomination for her role in "Alexa & Katie."