Nihoner

“Child actor” in Japanese

Short answer
子役 koyaku こやく

Child actor in Japanese is “子役” (koyaku). Full meaning: child actor, child actress; child's role (in a film, play, etc.), child's part.

Other ways to say “Child actor” in Japanese

Looking for the other direction? Search any Japanese word in the Nihoner lexicon, or practise what you have learned in the learning games.