He may have been the child star of Doogie Howser, M.D., but unlike all those other drug-addled child stars, Neil Patrick Harris has also had a crazy-strong entertainment career as an adult. Since we're totally pumped about his guest-starring role on Glee this week ("Dream On" looks so awesome!), we've decided to put Neil's celeb status to the test by playing "Six Degrees of Separation" with our favorite Glee stars.
Neil Patrick Harris was in The Golden Blaze (2005) with Michael Clarke Duncan who was in Talladega Nights: The Ballad of Ricky Bobby (2006) with Jane Lynch.
Neil Patrick  Harris was in The Best and the Brightest (2010) with Amy Sedaris who was in Strangers with Candy (2005) with Sarah Jessica Parker who was in the Sex and the City episode "They Shoot Single People, Don't They?" (1999) with Matthew Morrison.
Neil Patrick Harris is currently filming The Smurfs with Jayma Mays.
Neil Patrick Harris was in Harold & Kumar Go to White Castle (2004) with Kal Penn who was in Deck the Halls (2006) with Cory Monteith and Kristin Chenoweth.
Neil Patrick Harris was in The Next Best Thing (2000) with Lynn Redgrave who was in Hansel & Gretel (2002) with Delta Burke who was in St. Sass (2002) with Amber Riley.
Neil Patrick Harris was in Harold & Kumar Escape from Guantanamo Bay (2008) with John Cho who was in See This Movie (2004) with Jessalyn Gilsig.
Neil Patrick Harris was in The Best and the Brightest (2010) with Amy Sedaris who was in Dance Flick (2009) with Eddie Ruiz who was in Russel Fish: The Sausage and Eggs Incident (2009) with Chris Colfer.