Original: He has appeared in all three installments, The Lion, the Witch and the Wardrobe, Prince Caspian and The Voyage of the Dawn Treader, which was released on December 10, 2010.
Simplified: He appeared in all three movies, The Lion, the Witch and the Wardrobe, Prince Caspian and The Voyage of the Dawn Treader, which was released on December 10, 2010.