who is she??

Star of the Wonder Years

You always crack me up when you ask these questions. You could look up her filmography if you are interested.

She is also in a ton of Hallmark movies.

"Best known as America's alluring dream girl from her days as Winnie Cooper on The Wonder Years (1988), Danica McKellar made her breakthrough at the early age of 12. After that show ended, she went on to graduate Summa cum Laude from UCLA with a degree in Mathematics, and even proved a new math theorem, the Chayes-McKellar-Winn Theorem."

She's the cute speech/joke writer with a small part in several episodes of The West Wing - that's where I discovered her. She also writes maths books for children.