Now that Poppy knows there are other musical trolls scattered throughout the forest, she bottles up her endless positivity and invites delegates from every troll tribe in the forest to live together in harmony in a grand experiment she calls … Amanda Leighton, Megan Hilty, Lauren C. Mayhew, Skylar Astin, Kevin Michael Richardson, JP Karliak, Vladimir Caamaño Added on HBO 2023-03-05. Youtube Trailer