Jack CorbettBilly 5000 (voice)
Miya FolickRosario 'Rozebud' Dolphin (voice)
Tavi GevinsonGlarba (voice)
Elsie FisherBeatbox (voice)
Grace KuhlenschmidtFreckles (voice)
Julio TorresT-Bone / Gas Station Guy / Brontosaurus (voice)
Joe PeraHerschel Cretaceous (voice)
Sarah ShermanMiss Sharon / Minivan Mom (voice)
