a demi-god worshipped around 6000 BC by the Hittites, the Mesopotamians and the Sumerians; a minion of Gozer.
"There is no Dana, only Zuul" - Ghostbusters
Zuul is a demigod and the gate keeper of Gozar the Gozarian. She takes the shape of a large demonic dog. She is the counter part to Vinz Clortho, the keymaster.
There is no Dana, there is only Zuul.