Mona Malm got her breakthrough at the Royal Dramatic Theater in 1957 as "Tintomara" in Almqvist's 'Drottningens juvelsmycke', directed by Alf Sjöberg. She played "Martha" in Edward Albee's 'Who's Afraid of Virginia Woolf?' (1985) and the title role in Hjalmar Bergman's 'Chefen fru Ingeborg' (1993). She appeared in such films as Fanny and Alexander (1982) (as Jarl Kulle's tolerant wife) and The Best Intentions (1992).