Consider this one Jon Snow mystery [1] solved. Kit Harington will return to HBO much sooner than you were hoping, but this time, he's playing a totally different character. In the HBO sports doc spoof 7 Days in Hell (watch the trailer [2] if this is the first you're hearing of it), Harington plays English tennis player Charles Poole, who goes up against flamboyant American player Aaron Williams (Andy Samberg [3]) in the (fictional) longest tennis match in history. The pictures here will soothe your Jon Snow grief just a little bit until we find out whether he'll come back to Game of Thrones [4]. 7 Days in Hell airs on Saturday.