The character in Narnia was actually Father Christmasrather than Santa Claus. Regardless, he was played by actor James Cosmo.
For more information on this actor, see the related link.
Skandar Keynes played Edmund in The Chronicles of Narnia movie franchise.
James McAvoy
Vincent Grass
She plays Lucy in the Chronicles of Narnia
Richard Riehle
Georgie Henley portrayed the youngest sister, Lucy, in The Chronicles of Narnia
Liam Neeson.
Spencer breslin
Eric Lloyd
William Moseley(23 years of age from Sheepscombe, England) plays Peter.
The cast song in "The Chronicles of Narnia" is "The Battle" by Harry Gregson-Williams. It plays during the epic battle scenes in the movie.
The fox in The Chronicles of Narnia is voiced by the actor Rupert Everett in the film adaptation of "The Lion, the Witch, and the Wardrobe."