David Howard Thornton was 35 in Terrifier when he played the character 'Art the Clown'.
That was over 8 years ago in 2016.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 44, and has starred in 4 movies in total, 3 of those since Terrifier was released.
In Terrifier, I think David Howard Thornton looks: