Katrine Engberg is a Danish crime fiction author and former choreographer, dancer, stage director and actor. Her debut novel was the novel “Crocodile Guardian” otherwise known as “The Tenant” that she first published in 2016 to widespread popularity. The book became a massive hit among reviewers and readers and got several nominations for a range of prestigious awards. She followed it up with “Blood Moon” an excellent crime novel that the Copenhagen newspaper wrote that crime queens should be shaking in their boots at the upstart soon taking their place. The novel would earn her an author of the year nomination. She would then write her third novel in the series titled “Glasvinge,” which was also a huge success just like her previous two works. The third novel got a MARTHA award nomination in 2018 and 2019. Katrine Engberg was brought up in Østerbro and still lives in the town with her husband and their child.

Unni Maria Lindell is a Norwegian author, best known for her crime novels, who has also written a collection of poems and several children's and young adult books. Lindell worked as a journalist before she became an author. Her first book, Den grønne dagen ("The green day") was published in 1986. One of Lindell's most prominent characters is detective Cato Isaksen. Lindell was awarded the Mads Wiel Nygaards Endowment in 1998 and the Critics' Prize for the year's best children's or youth literature. In 1999 she received the Riverton Prize (Rivertonprisen), am annual literature award given to the best Norwegian detective story.

Jorn Lier Horst (born in Bamble, Telemark 1970) is a former Senior Investigating Officer at the Norwegian police force. He made his literary debut as a crime writer in 2004 and is considered one of the foremost Nordic crime writers. His series of mystery novels starring chief inspector William Wisting provides a detailed and authentic insight into how criminal cases are investigated and how it affects those involved, whether private or professional. The books represent a simple and accurate picture of the modern Nordic societies and is characterized by political and social commentary subtext.

Jørgen Jæger er en kritikerrost norsk krimforfatter. Som forfatter er han kjent for en serie kriminalromaner med lensmann Ole Vik i rollen som etterforsker. Bøkene er frittstående, men man vil følge dramatiske hendelser i hovedpersonenes liv fra bok til bok. Han debuterte som kriminalromanforfatter med "Skyggejakten" i 2003. Jægers endelige gjennombrudd kom i 2012 med kriminalroman "Stemmen", hans sjette utgivelse. Jægers sjette kriminalroman, "Stemmen", hans åttende, "Monster", hans niende, "Fortielsen" og hans tiende, "Guden", ble alle nominert til Bokhandlerprisen i 2012, 2015, 2016 og 2017. Han har også skrevet kriminalnoveller. I 2016 ble det solgt hele 130.000 eksemplarer av bøkene hans i Norge.

Kurt Aust is a pseudonym for Kurt Østergaard, an author and freelance writer. Østergaard trained as a teacher. He has been living in Horten in Norway since 1982. Østergaard debuted using the name Aust as a novelist in 1999. Prior to this, he had written the script for a historically-based cartoon on the slave ship Fredensborg. He has written several historical crime novels based on Denmark–Norway around the beginning of 18th century. Main characters in these novels are Professor Thomas af Boueberg of Copenhagen University and his Dr. Watson equivalent, the considerably less brilliant Norwegian Petter Hortten. In 2006 he published his first contemporary novel, the thriller De usynlige brødre (The Invisible Brothers) (translated into 8 languages) and his first children's book Kasper & Måns. Den store kaosdagen (Kasper & Måns. The Great Day of Chaos). Kurt Østergaard is married to the artist Kin Wessel (Ann-Carin Wessel). She has co-illustrated the cartoon about Fredensborg and the children’s book Kasper & Måns. Den store kaosdagen.