A Yeti lives in the mountains near Danville. He assisted Phineas, Ferb and their friends in finding a Christmas tree after the town's Christmas tree was destroyed by Dr. Doofenshmirtz. He is also seen being pushed in a wheelbarrow, getting bathed by Phineas and Ferb, and putting the star on a Christmas tree in the opening title sequence for "Phineas and Ferb Christmas Vacation!".
The Yeti's appearance in the title sequence looks similar to the scene from the children's Christmas special Rudolph the Red-Nosed Reindeer, where the Abominable Snowman places a star atop a Christmas Tree "without a ladder".