Ty Simpkins was 2 in War of the Worlds when he played the character '3 Year Old Boy'.
That was over 19 years ago in 2005.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 22, and has starred in 23 movies in total, 21 of those since War of the Worlds was released.
In War of the Worlds, I think Ty Simpkins looks: