Co-owner and manager of Millennium
Little is known about Erika's origins other than she was born in Sweden and eventually grew up to become a journalist. At one point of her life she married Swedish painter Greger Beckman and met another journalist, Mikael Blomkvist, and together they created Millennium.
Relationship with MikaelEdit
Upon creating Millennium and becoming a successful magazine firm, Erika and Mikael formed a sexual relationship. This led to multiple nightly meets with Mikael in various locations as: Mikael's private home, hotels, and sometimes in the Millennium offices after hours. While the sexual relationship with Mikael was private to the staff at Millennium, it was known to Beckman.
While married to Erika, Beckman discovered Erika's engagement with Mikael, presumably due to her constant ventures outsider their home and late night returns. Due to his love for his wife, Beckman did not express anger towards Erika nor did he disapprove. Thus caused Beckman to not care about his wife's affair with another man.
Erika Berger is Mikael's on-off lover in the novel and is slightly annoyed with his relationship with Cecilia Vanger.