Malachi Barton was 8 in Stuck In The Waterpark - The Movie when he played the character 'Beast Diaz'.
That was over 7 years ago in 2017.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 17, and has starred in 4 movies in total, 3 of those since Stuck In The Waterpark - The Movie was released.
In Stuck In The Waterpark - The Movie, I think Malachi Barton looks: