 For much of season six , Kenny remained dead , though both Stone and Parker entertained the idea of eventually bringing the character back . According to Stone , only a small minority of fans were significantly angered by Kenny 's absence to threaten a boycott of the cable channel Comedy Central , on which South Park is aired . For most of the season , Stan , Kyle , and Cartman fill the void left by Kenny by allowing the characters Butters Stotch and Tweek Tweak into their group , paving the way for those characters to receive more focus on the show . Nevertheless , Kenny returned from the year @-@ long absence in the season six finale " Red Sleigh Down " , and has remained a main character since , and has been given larger roles in episodes . His character no longer dies each week , and has only been killed occasionally in episodes following his return . 
