Moles were Talking Beasts that were smart, intelligent and peaceful animals. They were also excellent diggers and gardeners.
Moles were also troops in Aslan's Army where they fought the White Witch's army in the First Battle of Beruna, in The Lion, the Witch, and the Wardrobe. One Mole, named Lilygloves, who was the chief, planted an orchard tree of fresh apples for the Pevensies.
In Prince Caspian, many Moles served and fought with the Old Narnians, with Caspian X and the Pevensies, against King Miraz and the Telmarine army in the Second Battle of Beruna. One Mole named Clodsley Shovel and his Moles dug up turf for the Dryads to eat.