It is not always easy to choose "young" versions of actors on stage. Resemblance and interpretive skills must go hand in hand. In the following list, casting agents hit the nail on the head!
Actor
actress
film
TV series
casting
Cassie Howard
Sydney Sweeney
young Cassie
Euphoria
Mamma Mia! Here we go again
Bill Anderson young
Stellan Skarsgård
Jack Dylan Grazer
It
It chapter 2
Eddie it
James Ransone
adult
child version
Once Upon A Time
Kate Pearson young
Hannah Zeile
Lucy Wyma
This is Us
Snow White young
Cece Parekh
cece young
new girl
Margot
Paper Towns
Paper Towns
Hannah Alligood
Don Vito Corleone young
The Godfather
Jean Gray