Most of the original cast from the films reprise their roles: Anna Kendrick Branch: Justin Timberlake Tiny Diamond: Kenan Thompson Barb: Rachel Bloom Guy Diamond: Kunal Nayyar Wind Breeze: Carol Burnett Musical Soundtrack The special features several original songs and covers:
Tiny Diamond struggles with writer's block while trying to write a special holiday rap for his father, Guy Diamond. He eventually finds inspiration through meditation and realizes he just needs to rhyme from the heart. Core Voice Cast Trolls Holiday in Harmony (2021)
Poppy and Branch accidentally draw each other's names for the gift exchange. While Poppy is excited, Branch panics about finding a gift worthy of the "ultimate gift giver" and ends up building an overly complex machine that eventually explodes. Most of the original cast from the films