[1][2] In 1963, at the age of 6, Johansson auditioned for the part of "Tjorven" in the TV series Vi på Saltkråkan written by Astrid Lindgren, and was accepted.
She played Tjorven in the series as well as in four subsequent full-length movies produced in 1964-1967.
[1] Johansson studied at the Swedish National Academy of Mime and Acting until 1981.
She became interested in research on acting, and received a master's degree and a PhD at Södertörn University.
Her PhD thesis from 2012 is called Skådespelarens praktiska kunskap (The actor's practical knowledge).