She completed a three-year theatre program in Sweden before moving to the United Kingdom to further her studies.
In the UK, she trained at the London Academy of Music and Dramatic Art (LAMDA) and the Guildford School of Acting.
[2] After her graduation, Lundberg joined the NY Academy Company and performed in various stage productions, including Othello, Spring Awakening, and Gloria.
[3] In 2020, she played a fictionalised version of herself alongside partner Michael Sheen in the television series Staged.
[8] The couple made their first public appearance together in May 2019 at the premiere of Good Omens, in which Sheen plays a lead role.