The Powerpuff Girls Tentatively scheduled to appear Kristen Li, actor (voice of Bubbles), Amanda Leighton, actor (voice of Blossom), Natalie Palamides, actor (voice of Buttercup), Nick Jennings, executive producer, Bob Boyle , co-executive producer, Haley Mancini, co-head writer, actor (voice of Princess Morbucks), Tom Kenny, actor (narrator and The Mayor), Jake Goldman, co-head writer Limited Signing - Drawing for Line Tickets to be held Saturday at 9:00 am in the Autograph Area