Mason Thames was 13 in The Black Phone when he played the character 'Finney Blake'.
That was over 2 years ago in 2022.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 16, and has starred in 3 movies in total, 0 of those since The Black Phone was released.
In The Black Phone, I think Mason Thames looks: