Never heard of her until Teräsleidit turned up on SBS a few years back. Wasn't really my kind of film but she was very good in it. 89 is a good innings.
Their story
Seela Maini Marjatta Sella (nee Virtanen) was a Finnish actress whose career stretched across more than six decades on stage, screen and television. Born in Tampere on 30 December 1936, she grew up in the Pispala district among colourful neighbourhood characters who later fed her imagination. Her mother was an…
Seela Maini Marjatta Sella (nee Virtanen) was a Finnish actress whose career stretched across more than six decades on stage, screen and television. Born in Tampere on 30 December 1936, she grew up in the Pispala district among colourful neighbourhood characters who later fed her imagination. Her mother was an amateur actress and her grandmother had helped found the Valkeakoski workers' stage. After secondary school she entered the Finnish Theatre School in 1957 and graduated in 1959.
Early posts included the municipal theatres of Hämeenlinna and Turku, Intimiteatteri and Yle Radio Theatre. She later spent the 1990s at the Finnish National Theatre, retiring formally from that company in 2003, while continuing as a freelance performer. On television she became widely known as Lempi in Åke Lindman's 1978 series Elämänmeno, a role that drew letters from young viewers. Film credits included Yksinpuhelu (1984), for which she won a Jussi Award for best supporting actress, Timo Koivusalo's Sibelius (2003) as Aino Sibelius and Kalteva torni (2006), which brought another Jussi, and Pamela Tola's popular comedy Teräsleidit (2020). In 2020 she also played Hitler in the Tampere Workers' Theatre and National Theatre co-production Hitler ja Blondi, a part she called a career highlight. At 85 she took her first dance role in Sanna Kekalainen's Epidermis.
In 1962 she married Finnish-Jewish actor and economist Elis Sella; she converted to Judaism in 1969. Together they raised a son and a daughter and, from the mid-1970s, toured a programme of Jewish poetry and Yiddish and Hebrew song that introduced much of that culture to Finnish audiences at home and abroad. Elis died in 1992. Honours included the Pro Finlandia medal (1993), an Alfred Kordelin Foundation award (2000), the state prize for stage art (2009) and an honorary doctorate from the University of the Arts Helsinki, which she valued highly.
Sella was diagnosed with throat cancer in spring 2026. She died in hospital on the morning of 28 September 2026, aged 89. Finnish outlets including Yle, Helsingin Sanomat and Iltalehti reported the news the same day; a Yle memorial broadcast was planned for 30 September. Colleagues remembered a performer who treated the stage as home and lived by the rule that the show must go on. She had hoped for open, joyful funeral arrangements planned with her children.
Biography adapted from Wikipedia (CC BY-SA 4.0), Finnish Wikipedia, Yle, Helsingin Sanomat, Iltalehti. Wikipedia ↗

Teräsleidit is worth seeing just for her, she stole every scene she was in.