The god Lugh whose name means "shining one" was a Celtic sun god. He was handsome, perpetually youthful, and full of life and energy. This energy manifests itself especially in the number of skills he had, according to legend, mastered. He was the patron god of Lugdunum (cur: Lyon, France) and a solar deity.

According to a prophecy, Balor, the god of the underworld was to be killed by his grandson. He locked his daughter, Ethlinn, in a tower made of crystal to keep her from becoming pregnant. However, Cian, one of the Tuatha de Danaan, with the help of the druidess Birog, managed to enter the tower. She gave birth to a son, Lugh, by him, but Balor threw him into the ocean. Birog saved him and gave him to Manannan mac Lir, who became his foster father. He was then nursed by Tailtiu.

Lugh was also sometimes considered a son of Danu and Beli.

Lugh was ingenious. One Irish tale relates of how the god travelled to Tara, and arrived during a feast for the royal court. Lugh was met by the gatekeeper, and was asked what talent he had, for it was a tradition there that only those who had a special ability could enter the palace. The god said: "I am a wright", to which the gatekeeper replied "We already have a wright, your services aren't needed here". Lugh persisted "I am a smith". Again, the guard said the court had a smith that was quite adequate; but the god was not to be dissuaded. Lugh then noted that he was also a champion, a swordsman nonpareil, a harpist, a hero, a poet, an historian, a sorcerer, and a craftsman. The gatekeeper merely nodded his head, and stated bluntly that all these trades were represented in the court by other members of the Tuatha de Danaan. "Ah, but you do have an individual who possesses all of them simultaneously?", was Lugh's clever reply. The guard was forced to admit his defeat, and so Lugh entered and joined the festivities.

Lugh Lamhfada led the Tuatha in the Second Battle of Mag Tuireadh against the Fomorians. During this battle, Balor killed King Nuada with his eye, but Lugh ripped the fatal eye out with a sling, killing Balor.

Lugh was husband of Rosmerta. After the god Nuada lost an arm in the Second Battle of Magh Tuiredh and was forced to abdicate his kingship since he was no longer perfect, Lugh became the leader of the Tuatha De Danaan.

Lugh's name is the origin of that of the Pagan festival Lughnasadh (which is also the Irish Gaelic name for the month of August).

He was the father of Cuchulainn by Dechtere. His daughter was Ebliu, she married Fintan.

In Goidelic mythology, Nuada was one of the Tuatha de Danaan. He was a god of the sea, children and childbirth, the sun, beauty, healing, sorcery and poetry and writing. One of the four great treasures of the Tuatha de Danaan was his sword, Fragarach, which cut his enemies in half.

In the Second Battle of Magh Tuiredh, Nuada lost his arm. Since he was no longer perfect, his kingship was taken by Bres. His brother, Dian Cecht, made him a living silver hand to substitute. Nuada became known as Nuada Airgedlámh (Nuada of the Silver Hand). Bres had became a tyrant and so was exiled. Nuada returned to the throne and was killed by Balor, the grandfather of Bres.

Later, Dian Cecht's son, Miach, replaced the silver arm with Nuada's old arm; Dian Cecht killed him out of professional envy.

In Celtic mythology, Dian Cecht was the god of healing, a son of Danu and Beli. He was the healer for the Tuatha de Danaan.

He blessed a well called Slane so that the Tuatha de could bathe in when wounded; they became healed and continued fighting.

He made King Nuada's silver arm. Dian Cecht's son, Miach, replaced the silver arm with Nuada's old arm; Dian Cecht killed him out of professional envy.

Bodb or Badhb Dearg mac an Daghda ("Bodb the Red") was a son of Dagda and succeeded him as King of the Tuatha De Danaan. He subsequently fathered many deities.