Anna Kendrick

as Poppy (voice)

Justin Timberlake

as Branch (voice)

Kenan Thompson

as Tiny Diamond (voice)

Travis Scott

as Rhyme-a-saurus (voice)

Carol Burnett

as Windbreeze (voice)

Rachel Bloom

as Barb (voice)

Ron Funches

as Cooper (voice)

Kunal Nayyar

as Guy Diamond (voice)