Possible Clues:

• Cookie baker in the Hollow Tree
• Any of the Rice Krispies mascots
• Guy as tall as Santa's waist
• Fabulous figure in German football team?
• Yule aide
• Ernest J. Keebler, e.g
• Storied toymaker
• Claus helper
• One in Santa's support group
• Many a "Lord of the Rings" character