http://knowyourmeme.com/memes/ancient-aliens
Ancient Aliens is a series of image macros based on History Channel’s TV series with the same name starring alien expert Giorgio A. Tsoukalos, who often tends to explain inexplicable phenomena as the direct result of aliens or extraterrestrials being on Earth. In a somewhat similar fashion to Bill O’Reilly’s You Can’t Explain That series, the Ancient Aliens macros exaggerate Tsoukalos’ beliefs to such an extent that they become humourous.
The still shot of Giorgio A. Tsoukalos originated from the History Channel series Ancient Aliens[1], a documentary series that explores the possibility that aliens may have visited in the past. The program is directed and produced by Giorgio A. Tsoukalos and first aired on April 20th, 2010.
I thought it was a character from a Saturday Night Live skit.