As many of you already know, Stephen Colbert is a huge fan of The Hobbit, and director Peter Jackson even gave him a little cameo in the most recently film, The Hobbit: The Desolation of Smaug. I completely missed it, but to be honest I wasn't even looking. I'm sure most of you missed it as well, so here it is. It's an incredibly brief appearance as a Lake-town spy.
Here's a description of the scene from the Reddit user that pointed it out to the Internet.
Okay, it’s right as the dwarves are sneaking into Laketown. Bard’s son stops them and says that there are spys [sic] watching the house. Shortly after it shows Bard and his Son walking alone and the camera pans to the right and shows Stephen looking at them and he turns his head and his eyepatch falls down.