Celtic Pantheon

The Celtic pantheon includes gods such as Balor, Brigid, Cernunnos, Crom Cruach, the Dagda, Epona, Lug, Manannan Mac Lir, the Morrigan and Nuada Silverarm.

Legends include Banshee, Werewolves, Red Branch Heroes in chariots, water hounds, druids, and of course Cu Chulainn.

And for a more detailed army list you can buy the supplement by Graeme Davis and Andrea Sfiligoi.