Sparkle is the tritagonist of the 2013 special The Naughty List. She is voiced by Naya Rivera.
She is a rebellious reindeer who along with two elves named Winter and Snowflake, is placed on Santa Claus's naughty list and has to do mundane tasks such as washing windows and cleaning bathrooms.
However when on kitchen duty, Sparkle, Winter and Snowflake end up giving the entire North Pole food poisoning including Santa. With Christmas only a few hours away, Sparkle, Winter and Snowflake are the only ones who can save Christmas.