Began acting at 7 years old, but quit at 13 to concentrate on his education.
Served in the Swedish military, but returned to acting as a career once he was out of his teens.
Lent his support to the Tails for Whales campaign, a global initiative calling for stronger whale protection sponsored by the International Fund for Animal Welfare. The online petition features photos of people making whale tails with their upturned hands.
With codirector Björne Larson, won Grand Prix and Press Awards at the 2003 Odense International Film Festival in Denmark for Att döda ett barn (To Kill a Child), a short film narrated by his father, Stellan Skarsgård.
Appeared in Lady Gaga's music video for "Paparazzi."
Is a fan of the Swedish soccer club Hammarby IF in Stockholm.
Nominated for the Swedish Film Institute's Guldbagge ("Golden Beetle") Award for Best Supporting Actor for Hundtricket in 2002.