Thiessen will reprise her role as Kelly Kapowski, along with her co-star Zack Morris.
Her last film credit is as Lindsey Reardon in Cyborg Soldier, which premiered in 2008.
She is also famous for her role as Valerie Malone on the television series Beverly Hills, 90210 from 1994 to 2000.
Later on, she married Brady Smith in the year 2005 and has two daughters together.