Marcie

Marcie is a character from the Peanuts Franchise. She has (so far) only appeared in "The Time of the Great Pumpkin".

The Time of the Great Pumpkin
In this skit, Marcie is first seen at Linus' burial, and is later seen kissing Peppermint Patty after talking to Charlie Brown (character). It's unknown what happened to Marcie afterwards, while Peppermint Patty was killed by the Great Pumpkin and seen in hell, Marcie wasn't, which opens the possibility that she survived the attack of the great pumpkin.

She was voiced by Katelin Peterson in this skit, who also voiced Lucy and Sally in the same skit.