
Quick answer — Hana Sugisaki voices Smile in Words Bubble Up Like Soda Pop, Mary Smith in Mary and The Witch's Flower, Sayaka in When Marnie Was There.
Hana Sugisaki voices Smile (Words Bubble Up Like Soda Pop), Mary Smith (Mary and The Witch's Flower), Sayaka (When Marnie Was There).
Smile is voiced in Japanese by Hana Sugisaki.