Porter was the prison entrepreneur in the Season 8 premiere Twenty Vicodin. He was portrayed by actor Jaleel White.
Gregory House first approaches Porter after Mendelson demands an exit tax of twenty Vicodin and House is caught short. Porter agrees to help, but tells House it will mean he will have to give up just about all of his prison possessions.
However, House's plans are short circuited when Mendelson and the rest of the Confederate Brotherhood clean out Porter's entire supply of Vicodin to deal with the pain of their recent tattoos. This leaves House having to find the Vicodin elsewhere.