Giorgio Tsoukalos

Popularizer and face of the series 'Ancient Aliens'.

Giorgio A. Tsoukalos (; Greek: Γεώργιος Τσούκαλος; born 1978) is a Swiss-born writer, and television presenter and producer. He is a ufologist and a promoter of the ancient astronauts hypothesis. He is host and producer of Ancient Aliens, a History Channel series.