The Tuath(a) Dé Danann (usually translated as "people(s)/tribe(s) of the goddess Danu"), also known by the earlier name Tuath Dé ("tribe of the gods"), are a race of supernaturally-gifted people in Irish mythology. They are thought to represent the main deities of pre-Christian Gaelic Ireland.
THE BANSHEE is a female spirit in Irish mythology, usually seen as an omen of death and a messenger from the underworld. In legend, a banshee is a fairy woman who begins to wail if someone is about to die. In Scottish Gaelic mythology, she is known as the bean sìth or bean-nighe and is seen washing the bloodstained clothes or armour of those who are about to die.
Diancecht was the Irish god of Healing and Medicine in Celtic culture during the Bronze age in Ireland. Diancecht was the son of Dagda, "the good god of the Irish Celts", and was the physician to the Tuatha De Danaan, the ruling clan of gods. His son, Miach, was also a healer but preferred to use incantations and herbs when healing which was at odds with his father's surgical methods.
The Banshee, from the Irish “bean sí” (“woman of the síde” or “woman of the fairy mounds”) is a female spirit in Irish folklore, usually seen as a harbinger of death, as well as a messenger from the Otherworld. In Irish legend, a banshee is a fairy woman who begins to wail if someone is about to die.
Balor In the Celtic-Irish mythology, Balor is the god of death and the king of the Fomorians, a race of giants. Balor had only one eye, which he kept closed because anything he looked at would die instantly.
In Irish mythology, the Morrigan ("phantom queen") was a war goddess who would sometimes take the form of a crow. She would fly over battlefields like this, inspiring fear in the hearts of those below.