Lucas Jade Zumann was 13 in Sinister 2 when he played the character 'Milo'.
That was over 9 years ago in 2015.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 23, and has starred in 6 movies in total, 5 of those since Sinister 2 was released.
In Sinister 2, I think Lucas Jade Zumann looks: