noun
child actor; child actress
Refers to a child who performs in films, television, theater, etc.
彼女は子役としてデビューした。
She debuted as a child actress.
あの子役はとても演技が上手だ。
That child actor is very good at acting.
noun
Refers to a role written for a child in a production.
この映画には子役が二つある。
This movie has two child roles.