Giorgio A. Tsoukalos is a Swiss-born writer, television presenter, and producer. He is a proponent of the pseudo-archaeological theory that ancient alien astronauts interacted with ancient humans. He is best known for his appearances on the television series Ancient Aliens. Tsoukalos was born in Lucerne, Switzerland, in 1978. He is of Greek-Austrian heritage. He graduated from Ithaca College in I... show more