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)
Lacey Chabert
Penelope (voice)
Charlie Adler
Santa / Mr. Ingersoll / Dougie’s Dad (voice)
Rachel Eggleston
Holly (voice)
Julian Zane
Ernesto (voice)
Karim Saleh
Mr. Tyabji (voice)
Connie Jackson
Grandma Lucy (voice)
Dee Bradley Baker
Jack (voice)
Ali Eagle
Mrs. Alexander (voice)
Michelle Bonilla
Principal Reyes (voice)
Monroe Cannon
Michelle (voice)
Moroccan Cannon
Dougie (voice)
