It is said that the name Cailte means slender and fierce, which renders it a very suitable name for this character. He was a member of the Fianna who was as known for his athleticism as his willingness to help. He was a great personal friend of Fionn Mac Cumhaill, and most of the tales of the deeds of the Fianna involve Fionn and Cailte along with a few of the other more prominent members. Like Fionn, he was descended from the Baoiscne clan, a clan known for its generosity of spirit. There is nothing that he wouldn't do for his brothers in the Fianna, and certainly nothing he wouldn't do for Fionn. It is often his interventions that get the Fianna out of trouble. His feats usually involve great speed, as he was particularly known for his lightness of foot.