This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Katallan (Albanian)
Katallan is an man eating giant from Albanian mythology. The term "Katallan" comes from the Almogavars who were a part of the Catalan company who fought against the Turks in the Byzantine empire 1305. They are said to live in a cave and has one eye in the middle of his forehead.
Albanian folklore's chilling giant. towering in darkness, eyes gleaming with hunger, teeth jagged like nightmares. Katallan, embodiment of primal fears, bridges the known and unknown.