- Etymology: Hound of Chulainn
- Born: ?
- Height: 1.39 m/5'8"
- Weight: 52 kg/115 lbs.
- Eyes: Brown
- Hair: Brown
- Facial Hair: None
- Tattoos: A boar across his right shoulder, a sea serpent on his left
- Scars: Across his right forearm from his fight with Chulainn's dog
Cù Chulainn was the son of the god Lug and Deichtine sister of Conchobar. He is a legendary figure of Irish history and probably the most famous Irish warrior. His most famous exploit at this time was killing of the hound of Culain. In compensation he offered to take the place of the hound until a new one could be raised and trained. During that time he was the hound (Irish "Cu") of Culain.
Cù Chulainn was the best warrior of Conchobar, Ulster's king. During Munster's cattle raid he alone defended the kingdom for several days while the other warriors went through their annual pains. He did this by first harrying the Munster forces and then, by mutual agreement, through daily duels with the best warriors of the other side.
- The Demon of Llewenydd