when does kenny come back after season 5
Season six finale "Red Sleigh Down"
Kenny McCormick
Kenny returned from the year-long absence in the season six finale "Red Sleigh Down", has remained a main character since, and has been given larger roles in episodes.
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Kenny McCormick [SEP] Deaths
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", has remained a main character since, and has been given larger roles in episodes.