The same year he also made his film-breakthrough with Korridoren (The Corridor), Jan Haldoff's social commenting film on hospitals and the health care system in Sweden, where Ragnar plays a young doctor, new on the job, facing the dilemmas of prioritizing patients.

For a young audience today, in Sweden, he became unforgettable when playing the religious psycho Sten Frisk in the popular and long-running 1990s TV series Tre Kronor (1994) on Swedish channel TV4, a role that followed him for long and for more than a decade led to him often being typecast as evil characters and crazy psychos in various roles on film and TV.

Even though being cast in a Swedish vampire film, his character of Håkan was this time a bit more complex than just "evil"; in director Tomas Alfredson's popular success feature Låt den rätte komma in (Let the Right One In) in 2008.

Being versatile in the entertainment field, Per Ragnar has also worked as a TV presenter and host for the Swedish morning show Gomorron Sverige!

His most recent book is called Om bland tusen stjärnor: en tankebok om döden (~Among Thousand Stars: A Book On Death), which deals with how differently all of us deals with – and approaches – the subject of death; children and adults, different religions; scientifically, spiritually and logically.