The show stars Mark-Paul Gosselaar, Dustin Diamond, Lark Voorhies, and Dennis Haskins, who appeared in Good Morning, Miss Bliss, as well as Tiffani-Amber Thiessen, Elizabeth Berkley, and Mario Lopez, who joined the cast for Saved by the Bell.

Kelly Kapowski ( Tiffani Thiessen ) and Jessie Spano ( Elizabeth Berkley ) were introduced as longtime friends of the original three characters and new transfer student A. C. Slater ( Mario Lopez ) rounded out the group.

The episode, in which the cast graduated from high school, was filmed before Thiessen and Berkley left the show.

Both Elizabeth Berkley and Thiessen, as well as Jennie Garth, auditioned for the role of Kelly Kapowski.

" To promote the new album, Avary performed the album's lead single " Walls " on KDFW's Good Day Dallas and KTBC's Good Day Austin, and held a hometown album release party at the Granada Theatre in Dallas, TX, where Matt Thiessen of Relient K and a contest-winning unsigned band opened.

Tiffani Amber Thiessen ( born 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.

In January 2007, Thiessen joined the cast of ABC's drama What About Brian, playing the boss of Brian, and a potential love interest for Adam.

Thiessen appeared as a celebrity client for Lonni Paul, one of the final three contestants on season four of the HGTV interior designing reality series Design Star, on the September 6, 2009 episode.

On May 11, 2010, voters of the Township elected Richard Dow, III and Dywnne Belton to Township Council, replacing incumbents Jules Thiessen and Brooke Tidswell, III, who served on the Council for 16 and 12 years, respectively.

In the Thiessen polygon method, the watershed is divided into polygons with the rain gauge in the middle of each polygon assumed to be representative for the rainfall on the area of land included in its polygon.

In 1989, at the age of seventeen, she auditioned for the role of Kelly Kapowski in Saved by the Bell, but the producers of the show could not decide whether to cast her or Tiffani Thiessen.

Hertz, who was concerned for his safety and was looking, like his fellow Nobel laureate Franck, to move to the USA or any other place outside Germany, Manfred von Ardenne, director of his private laboratory Forschungslaboratorium für Elektronenphysik, Peter Adolf Thiessen, ordinarius professor at the Humboldt University of Berlin and director of the Kaiser-Wilhelm Institut für physikalische Chemie und Elektrochemie ( KWIPC ) in Berlin-Dahlem, and Max Volmer, ordinarius professor and director of the Physical Chemistry Institute at the Berlin Technische Hochschule, had made a pact.

Von Ardenne was made head of Institute A, Goals of Manfred von Ardenne ’ s Institute A included: ( 1 ) Electromagnetic separation of isotopes, for which von Ardenne was the leader, ( 2 ) Techniques for manufacturing porous barriers for isotope separation, for which Peter Adolf Thiessen was the leader, and ( 3 ) Molecular techniques for separation of uranium isotopes, for which Max Steenbeck was the leader.

In Institute A, Thiessen became leader for developing techniques for manufacturing porous barriers for isotope separation.

In 1949, six German scientists, including Hertz, Thiessen, and Barwich were called in for consultation at Sverdlovsk-44, which was responsible for uranium enrichment.

These two singles had popular music videos made for them ; the video for " You're a God " featured actress Tiffani-Amber Thiessen.

* Peter Adolf Thiessen: 1st degree, for uranium enrichment techniques

On April 4, 2011, goaltender Brad Thiessen was named the recipient of the Aldege " Baz " Bastien Award, an annual award given to the AHL's outstanding goaltender for each season, as voted by coaches, players and members of the media in each of the league's 30 cities.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Thiessen.

She appeared in the pilot, but when Tiffani-Amber Thiessen, a regular from the original, opted to return, Atkins's character was written out.

Other guest stars included John Ritter, Dennis Miller, Janeane Garofalo, Bebe Neuwirth, Lauren Graham, Ben Stiller, Chris Kattan, French Stewart, Dilbert creator Scott Adams, Jon Stewart, Bryan Callen, Tiffani Amber Thiessen, Patton Oswalt and, in a non-speaking cameo, Ron Jeremy.

Thiessen has received piano lessons since he was seven years old, with early interests in ragtime and Scott Joplin, specifically the soundtrack from The Sting.

Relient K's Matt Thiessen said in 2000 that they were allowed by Ace to live on their bus, as Relient K was just starting out.

Although it did not comment on water fluoridation's safety, three of the panel members, namely Robert Isaacson, Kathleen Thiessen and Hardy Limeback, expressed their opposition to water fluoridation after the study and the chair, John Doull, suggested that the issue should be reexamined.

Thiessen made the following comment: “ We have no desire to run down our present representative, but we feel it is the democratic right of the citizens of Rhineland to express their wishes at the ballot ” ( Winnipeg Free Press, 6 February 1953 ).

The group recorded lead singer Matt Thiessen making drum noises and played them with electronic drums to make the song.

After many years of going by her full name, she dropped her middle name, and is now credited as simply Tiffani Thiessen.

Thiessen was born in Long Beach, California, the daughter of Robyn Ernest, a homemaker, and Frank Thiessen, a park designer and landscape architect.

In 1992, Thiessen graduated as valedictorian at Valley Professional High School in Studio City, Los Angeles, California.

Ernest was the first person to suggest that Thiessen enter show business.

After a childhood of beauty pageants, Thiessen was crowned Miss Junior America in 1987 and a year later won Teen magazine's " Great Model Search " in 1988, by gracing the cover of that issue.

To broaden her visibility on television, Thiessen began making television appearances with guest starring roles on several television shows and television movies, as well as in film.

Thiessen later guest-starred on NewsRadio ( 1999 ) and the sitcom Two Guys and a Girl and starred in the short-lived action drama series Fastlane.

On December 2, 2008, Thiessen was cast in White Collar, a USA Network television series.

Thiessen and Paul now have a nursery furniture line together called Petit Nest, http :// www. petitnest. com /

During the early and mid-1990s, Thiessen dated Brian Austin Green.

On June 15, 2010, Thiessen gave birth to a daughter named Harper Renn Smith, who weighed 8 lbs.

Thiessen served as maid of honor at 90210 co-star and best friend Jennie Garth's wedding to actor Peter Facinelli, with whom she co-starred on Fastlane.

At the site of what was originally the Johann D. C. Thiessen mansion and ranch, now Locomotive Park, so named because of the retired locomotive Steam Engine 92 and Camas Prairie RR Caboose on display in the middle, large trees and pathways are decorated with lights from Thanksgiving to New Year's.

In 2007, he produced the play, Shakespeare's Will by Canadian Playwright Vern Thiessen.

Berkley refused to redub her lines, so a noticeably different actress ' voice can be heard on the soundtrack.