Katja Medbøe studied acting at Oslo National Academy of the Arts from 1964-1968. After she graduated, she was employed at The National Theatre in Oslo, where she worked until her death in 1996. There were small periods were she would appear at other theaters around Norway. Her film debut was with the movie Voldtekt in 1971. Most people in Norway remember her as Kaja in the three Hustruer movies. Beside acting, she has also narrated several audio books.