If you don't recognize any of the characters on the signatures, here's a short cast list:

● Lilah Martin > Ava Phillippe
● Katelynn "Katy" Santos > Peyton List
● Sophia Layne > Rachel Covey
● Amy-Lee Truman > Jadin Gould
● Calliope Papadopoulos > Bryce Hitchcock
● Georgia "Gia" Martin > Meadow Walker