Acting Jason Mendelson Acting The Mayflower Voyagers Peppermint Patty (voice) 1988 Happy New Year, Charlie Brown Marcie (voice) 1986 It's an Adventure, Charlie Brown Milo (voice) 1983 Other Credits He's a Bully, Charlie Brown Story Coordinator 2006 I Want a Dog for Christmas, Charlie Brown Story Developer 2003 Charlie Brown's Christmas Tales Story Developer 2002 A Charlie Brown Valentine Story Developer 2002 The Making of 'A Charlie Brown Christmas' Producer 2001 Agent-readable