Peter Dinklage and Vincent Grass have signed on to star in The Chronicles of Narnia: Prince Caspian for Walt Disney Pictures and Walden Media.

They'll join Ben Barnes as Prince Caspian and Alicia Borrachero as Prunaprismia, the wife of General Miraz. Variety notes Peter Dinklage will play Trumpkin the Dwarf and Vincent Grass has been cast as Doctor Cornelius, Prince Casplan's mentor. They join the returning Georgie Henley, Skandar Keynes, Anna Popplewell and William Moseley, as well as Liam Neeson as the voice of Aslan.

The Chronicles of Narnia: Prince Caspian starts principal photography next week in New Zealand.