Josh Radnor as Shia LaBeouf!
Jason Seigal as... one of those annoying Jonas Brothers!
Cobie Smulders as Carrie Bradshaw!
Alyson Hanigan as Sarah Palin!
And now just because I can - and because it's the greatest moment on television ever produced - here is the infamous "Let's Go to the Mall" clip. How come the Jonas Brothers are #1 and this song isn't? UNFAIR! But seriously, isn't this the single greatest moment of television OF ALL TIME?! I really think it is.