Stephen Lee "Steve" Viksten (July 19, 1960 – June 23, 2014) was an American television producer, writer and voice actor. He was best known for voicing the character Oskar Kokoshka (and co-creating, writing and producing) on the Nickelodeon animated series "Hey Arnold!". He also wrote many episodes for the shows "Hey Arnold!", "Rugrats", "Recess" and "Duckman". He co-wrote a "The Simpsons"<nowiki>'</nowiki> season 22 episode called "Homer Scissorhands" with Peter Gaffney in 2011. This was his last credit.