Marcie is Peppermint Patty's best friend. From the moment they met at summer camp, Marcie has called Peppermint Patty "Sir" out of admiration and misguided manners. An unlikely pair, they seem to have nothing in common yet that is what makes their friendship so genuine. Marcie is the smartest of the Peanuts gang, but also the most naive. She's always willing to help out her friend with school work and she's not above sharing test answers or calling her on the phone to remind her of homework assignments. There is an innocence to Marcie and Peppermint Patty is her protector. Marcie is also completely inept when it comes to sports, yet they still let her play on the baseball team. If Marcie and Peppermint Patty ever have a falling out it's likely to be over Charlie Brown, who they both secretly love.