Thorleif Oscar Karlsen (17 December 1909 – 31 January 2010) was a Norwegian police inspector and politician, who also became known through the radio program Trafikk og musikk.
He was freed, but was later arrested again during a crackdown on the police (Norwegian: politiaksjonen), and was then imprisoned at Grini concentration camp from March 1943 to January 1944.
After being released again, he was even arrested for a third time, and sat at Møllergata 19 from October 1944 to the war's end in May 1945.
[3] He has speculated that the reason for him not being sent to a German concentration camp, was that his father co-founded Nasjonal Samling.
[1] He became nationally known as permanent guest in the Norwegian Broadcasting Corporation radio program Trafikk og musikk hosted by Oddvar Folkestad which aired every Saturday afternoon between 1960 and 1980.