Quickbeam
From Tolkien Gateway
One of the younger Ents of Fangorn Forest belonging to the people of Skinbark. His name (a translation of Elvish Bregalad) was given because of uncharacteristic hastiness. The rowan-trees in his keeping suffered greatly at the hands of Saruman's Orcs, and he played a great part in the Ents' resulting attack on Isengard.