Kludd, also known as Metal Beak, is the main antagonist of the Guardians of Ga'Hoole series, serving as the main antagonist of the first half and the overarching antagonist of the second half.
He is a barn owl, the first son and eldest child of Noctus and Marella, the older brother of Soren and Eglantine, the mate of Nyra, the father of Coryn, and the uncle of Bell, Blythe, and Sebastiana.