Thinking about it, his absence makes sense. Last year the news that he would have a reduced role didn't sit well with many people and it seems it's going to be even worse in S4 in that respect. I know he's fun and all, but without a character to play, what is he going to talk about? Last year he talked about how awesome the doubles and the parallel universe were, but having nothing to say about his (lack of) role must be frustrating