Stefán Karl Stefánsson, Icelandic actor and singer (born 1975)

Stefán Karl Stefánsson was an Icelandic actor and singer. He was best known for portraying Robbie Rotten, the antagonist of the children's television series LazyTown.

August 21 is the 233rd day of the year in the Gregorian calendar; 132 days remain until the end of the year.