Ezra Miller was 28 in Fantastic Beasts: The Secrets of Dumbledore when they played the character 'Credence Bellebosse / Aurelius Dumbledore'.
That was over 2 years ago in 2022.
Today they is 31, and has starred in 21 movies in total, 2 of those since Fantastic Beasts: The Secrets of Dumbledore was released.
In Fantastic Beasts: The Secrets of Dumbledore, I think Ezra Miller looks: