Yes, those are the stars of FX's Wilfred, in character, at last night's American Idol results show. It's hard to say if Elijah Wood is really thinking "Yikes, what did I get myself into here?" because he kind of always looks like that.
I could be wrong, but I have the feeling FX's Wilfred is one of those shows that will generate a fair bit of reader interest, regardless of the ratings.
FX is promoting the show in some, uh, cost efficient ways. It took a similar tack during the second season of Fringe when it placed "Observers" in the audience of various big events.