Jonathan Taylor Thomas was 11 in The Lion King when he played the character 'Young Simba (voice)'.
That was over 30 years ago in 1994.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 42, and has starred in 20 movies in total, 19 of those since The Lion King was released.
In The Lion King, I think Jonathan Taylor Thomas looks: