Kajsa Anna-Karin Linnéa Ernst, (born 4 August 1962) is a Swedish actress. She started acting at the age of sixteen at Nöjesteatern in Malmö and studied at Teaterhögskolan in Malmö. After graduating she worked for ten years at Helsingborgs stadsteater. There she acted in several plays such as Byggmästare Solness, Spindelkvinnans kyss and Knäckebröd och hovmästarsås. In 1982 she danced ballet at plays for Nils Poppe at Fredriksdalsteatern, and in 1990 she played a role in the play Två man och en änka at the same theatre. She would appear in the filmatization of the play in 2013. In 1998, Ernst moved to Stockholm. She made her film debut in Kjell Sundvalls In Bed with Santa in 1999, she has then moved on to act in films such as Miffo in 2003, Masjävlar in 2004 for which she won a Guldbagge award, and also in the film Järnets änglar. Kajsa Ernst was married to actor and director Göran Stangertz from 2009 and until his death in 2012.
2025What Happened? as Unknown
2023Fallen (6 Episodes) as Kerstin Julin
2021Huss (5 Episodes) as Irene Huss
2020Sommaren 85 (6 Episodes) as Ju-Anita
2020Tove as Signe "Ham" Jansson
2020My Father Marianne as Helga
2019Darkness: Those Who Kill (5 Episodes) as Lena Nymark
2016Finaste familjen (24 Episodes) as Ann Linder
2015A Holy Mess as Annica
2014Hela Kändis-Sverige Bakar (5 Episodes) as Self - Contestant
2013JerryMaya's Detective Agency – von Broms' Secret as Julia Von Broms
2012Annika Bengtzon: Crime Reporter - A Place in the Sun as Berit Hamrin
2012Annika Bengtzon: Crime Reporter - Lifetime as Berit Hamrin
2012Annika Bengtzon: Crime Reporter - The Red Wolf as Berit Hamrin
2012Annika Bengtzon: Crime Reporter - Studio Sex as Berit Hamrin
2012Annika Bengtzon: Crime Reporter - Prime Time as Berit Hamrin
2012Annika Bengtzon: Crime Reporter (6 Episodes) as Berit Hamrin
2012Nobel's Last Will as Berit Hamrin
2012I Want it All as Mother
2010Among Us as Therapist
2008Kungamordet (4 Episodes) as Christina Larsson
2007Black Island Sisters as Mona
2007Gangster as Beata
2006Bota mig! as Unknown
2006All it Takes is a Miracle as Yvonne
2006Stjärnorna på Slottet (5 Episodes) as Unknown
2005Wallander: The Overdose as Jenna Sahlin
2005Celebrating Lennart as Kerstin
2005Wallander (1 Episode) as Jenna Sahlin
2004Dalecarlians as Eivor
2003Miffo as Sonja
2001Beck 09 - The Price of Vengeance as Unknown
1999In Bed with Santa as Pauline
1999En dag i taget (1 Episode) as Åsa Boström
1991Två man om en änka as Sofie