Andy Samberg and Kit Harington to Team Up In HBO’s Wimbledon Mockumentary

Andy Roddick and Andy Murray are about to be joined by a new tennis-playing Andy: Andy Samberg. The comedian will not be playing at the U.S. Open any time soon, but he will be honing his backhand to play a tennis bad boy opposite Game of Thrones star Kit Harington (a.k.a. Jon Snow) in an upcoming HBO mockumentary called 7 Days in Hell.

Samberg will play “tennis’ superstar bad boy” Aaron Williams, who is up against Harington’s Charles Poole, “a tennis prodigy and certified truck driver,” facing off during a legendary seven-day match at Wimbledon, according to Deadline. While the story sounds far-fetched, it has roots in reality. Back in 2010, Wimbledon hosted an epic match between John Isner and Nicolas Mahut, who battled it out for 11 hours over three days, with Isner eventually winning, 70-68 in the fifth set.

Rounding out the cast of the mockumentary will be Fred Armisen, Lena Dunham, Karen Gillan (as a supermodel and Charles’s childhood best friend), Howie Mandel, Soledad O’Brien (as herself), Michael Sheen and Mary Steenburgen (as Charles’s crazed mother). Nebraska stars Will Forte and June Squibb will reunite on screen as well, with Forte playing a tennis historian.

The HBO original was written by Girls and American Dad! writer Murray Miller and is based on a concept by Miller and Samberg. SNL and Funny or Die’s Jake Szymanski will direct.

MORE: A Conversation with Andy Samberg: Cops, Cuckoos and Comedy

MORE: The Best Theory About Jon Snow’s Mother