Scrat was an acorn-obsessed sabre-toothed squirrel that lived during the ice ages, attempting to store his prized acorn. He is a supporting character in Ice Age, a major character in Ice Age: The Meltdown, Ice Age: Continental Drift and Ice Age: Collision Course, and the tetartagonist of Ice Age: Dawn Of The Dinosaurs.

During the days of the ice age, Scrat took an acorn with him everywhere, hoping to find a place to store it for the winter. Scrat also went out looking for other acorns so as to further his storage, looking all over for acorns and nuts.

He made his first appearance in the Macy's Thanksgiving Day Parade in 2015 alongside Ronald McDonald, Angry Birds' Red and Sinclair's Dino. He also lead the parade that year. He also appeared in 2016 and 2017.