Mariah Carey

Older Mariah (voice)

Breanna Yde

Mariah (voice)

Henry Winkler

Grandpa Bill (voice)

Laya DeLeon Hayes

Vicky (voice)

Montse Hernandez

Grace (voice)

Issac Ryan Brown

Brett (voice)

Bria Danielle Singleton

Beth (voice)

Phil Morris

Bud (voice)

Lacey Chabert

Penelope (voice)