Digger is a member of The Band along with Soren, Gylfie and Twilight and is one of the main characters in The Guardians of Ga'Hoole book series.
He is a Burrowing Owl who along with the Band and the Guardians to battle the Pure Ones led by Soren's evil brother Kludd (also known as Metal Beak) and his mate Nyra (though in the film Legend of the Guardians: The Owls of Ga'Hoole, Kluddand Metal Beak are separate characters with Kludd being a member of the Pure Ones rather than their leader and Nyra's mate).
He is voiced by David Wenham.
Role in the film
Legend of the Guardians: The Owls of Ga'Hoole