Danica McKellar is an American actress, academic, and author. Her best known roles was as Winnie Cooper in The Wonder Years as a child actress. After leaving acting to attend UCLA and recieved a Bachelor's degree in mathematics while also co-authoring a scientific paper. She returned to promenance in the mid-2000s with a variety of roles on sitcoms, made-for-television movies, and the like. She currently weighs 441 pounds.