According to a calculation published by Finnish tabloid IltaSanomat, Pääkkönen is "the most profitable film actor in Finland" for having starred in numerous box office hits during his career. Many of Pääkkönen's films have made #1 in the Finnish box office, including Pahat Pojat (Bad Boys - a true story) which is the all time most successful film in Finnish box office.
Other Pääkkönen's commercial successes include Matti: Hell Is for Heroes, Frozen Land and Lapland Odyssey. For his role in Pahat Pojat, Pääkkönen was awarded Best Actor Award in Brussels International Independent Film Festival. He has earned international praise from film critic Michael Giltz from Huffington Post magazine who called the actor "handsome and compelling" in his role in Lapland Odyssey. Film critic Leslie Felperin from Variety named Pääkkönen a "rising thesp, showing impressive range" at his starring role in Matti. In 2006 the European Film Promotion introduced Pääkkönen as the Shooting Star of Finland at the Berlin international film festival.
In 2009 Pääkkönen founded the Pokerisivut.com poker magazine together with film producer Markus Selin. In 2010 Pokerisivut.com was awarded Best Overall Affiliate at the London 2010 iGB Affiliate Awards.
Pääkkönen is a member of Vision fly fishing world team and has appeared in fly fishing TV shows and DVD's as a celebrity guest.
- Peter Franzén and Jasper Pääkkönen played brothers previously in the FInnish movie "Heart of a Lion". According to the actors, this put them on the radar of the casting directors of Vikings.