Tiffani-Amber Thiessen was born on January 23, 1974 in Long Beach, California. She is the daughter of Robyn, a housewife, and Frank, a park designer. She is a middle child with one younger brother named Schyler and a older brother named Todd.

Tiffani first appeared in the spotlight at the age of 8. It was her uncle Roger Ernest a former actor and screenwriter, who suggested she try modeling and acting and she did and soon she was appearing in both television an print ads. Her first commercial was for The Peaches and Cream Barbie Doll. She was disappointed with these assignments because she could never hold the Barbie doll, instead she had to hold Ken and the other girl featured in the commercial got to hold Barbie "I guess I wasn't blond enough" Tiffani said.
Shortly after these commercials she began entering beauty pageants. In 1987 Tiffani tried her luck in the Miss Junior American Pageant which she won.

Her big acting break came in 1989 when she landed the role of popular cheerleader Kelly Kapowski on NBC series "Saved by the Bell". In 1994 Tiffani got cast in Aaron Spelling's popular teen-drama Beverly Hills 90210 as the vixen Valerie Malone. "I was in Vegas doing the last episode of "Saved by the Bell" when I got a call from Aaron Spelling", she recounts. "So I met him and screen-tested with two other girls who were up for the part. After the audition, I was walking to my car and suddenly heard my name being called. I'm like thinking, 'Who the fuck is calling me?' I look up and Aaron is up on the third level yelling, 'Congratulations, welcome to the show!'. That's how I found out, having him yell down to the parking lot. It was really cool. If you work with Aaron and he likes you, you'll always work for Aaron. And believe me, that's not a bad thing!"
She stayed on the show until 1998 when she left to pursue a movie career instead. The result were two independent movies called "Speedway Junkie" and "Love Stinks" in 1999, followed by "The Ladies Man" and "Shriek if you know what I did last Friday 13th" in the year of 2000. In 2002 Tiffani starred in Woody Allen's movie "Hollywood Ending" where she plays the onscreen actress Sharon Bates who tries to seduce her director played by Allen. In the fall of 2002 Tiffani teamed up together with Peter Facinelli and Bill Bellamy in FOX's new action/drama series "Fastlane".
 

Misspellings & aliases:
Tifani, Tifanni, Tiffanni, Tifany, Tiffany, Tiffanny, Ember, Ammber, Tissen, Tiessen, Tiesen, Thissen, Thisen, Thisenn, Thiesenn.