She began her acting career when she was 8 years old, and appeared as Klaartje in a 1997 episode of the Belgian television series
Samson en Gert. Her film debut came in 1999 by appearing as Liese in
De Kabouterschat. She had the same role in the following sequels as well,
Plop in de Wolken (2000) and
Plop en de Toverstaf (2003). After having minor roles in various television series, she had her first leading role in the one-season
VTM series
Dag & Nacht: Hotel Eburon (2010) as Amber Claessens. Between 2010 and 2011, she portrayed Nina Oostvoghels, one of the main characters at that time of the
Eén series
Thuis. She imitated various celebrities and public figures, and had different characters in the VTM satirical series
Tegen de sterren op between 2010 and 2018 . For her performances in the series, she was awarded with the Rising Star award in the
Vlaamse Televisie Sterren 2011, Cleymans continued her film career with
Kill Me Please (2010) and
Groenten uit Balen (2011). She portrayed public prosecutor Helena De Ridder, the leading role of the four-season Eén series
De Ridder (2013–2016). She was nominated for the Best Actress in the 2014 and 2015 editions of the Vlaamse Televisie Sterren, for the performances in
De Ridder, and
De Ridder and
Tegen de sterren op respectively. Between 2018 and 2019, she portrayed Sarah Liebman, a
Jewish girl that has a love affair with a non-Jewish guy Louis Segers (Jonas Van Geel) in a dramatic musical theatre '''40-'45
that set during World War II. In the Belgian comedy horror zombie movie Yummy (2019), she played the hospital director Janja, one of the leading roles in the movie. She appeared as Els and shared the main role with Rik Verheye in We moeten eens praten'', the Eén mini-series that started to air in January 2021. == Personal life ==