Happy birthday, Julie Kavner! You may not recognize her face, but you likely know her voice -- the 62-year-old plays the blue beehive-haired Marge on "The Simpsons."
To celebrate Marge...er, Julie's big day, we've assembled a party consisting of her "Simpsons" co-workers -- and take a peek behind the curtain at the real-life people who bring our favorite TV family to life.
Join the conversation...