Being Jon Snow, Kit Harington might be 'the man who knows nothing' in "Game of Thrones", but the actor definitely knows the right kind of guy to team up with, when experimenting in comedy. From 11 July, Harington will be seen along with "Saturday Night Live" alumni Andy Samberg in the upcoming HBO sports mockumentary, "7 Days in Hell".

The mini-series follows the longest and greatest tennis match of all time: a seven-day, five-set game between a pair of fictional players from the not-too-distant past. Samberg's Aaron Williams is described as a "hyper-malcontent", while Harington's Charles Poole is a "dim-witted prodigy who carried England's hopes for a tennis champion on his shoulders."

The still of Samberg, released in Showbiz Junkies, definitely takes us back to an old "SNL" sketch "ESPN classic" performed by Will Forte, Jason Sudeikis and Kristen Wiig, along with the respective hosts. After all, the show is directed by the "SNL" digital shorts and "Funny or Die" veteran Jake Szymanski.

The all-star cast of the series debuting on Saturday, 11 July, also include former "SNL" members Forte ("Last Man on Earth") and Fred Armisen ("Portlandia") , "Girls" star Lena Dunham, Selfie's Karen Gillan from "Selfie", Howie Mandel, Michael Sheen, Mary Steenburgen, June Squibb and Soledad O'Brien.