Ørjan N. Karlsson is a bestselling Norwegian crime and thriller author with more than 25 novels to his name. His Team Alpha / Ida Vinterdal thriller series has sold more than 50,000 copies in Norway. Drawing on his background as an army officer, international UN, EU, and NATO missions, and a master’s degree in sociology, Karlsson brings first-hand insight into crisis management, defence, and geopolitics to his fiction.
He is also the author of the bestselling Jakob Weber crime series, which has sold more than 160,000 copies, with rights sold to six countries. The first book became a SPIEGEL bestseller in Germany in 2026.
