Charlton Heston was 16 in Peer Gynt when he played the character 'Peer Gynt'.
That was over 83 years ago in 1941.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
In 2008 he died aged 84, starring in 155 films in his career, 157 of those after Peer Gynt was first released. If he were alive today he would be 100.
In Peer Gynt, I think Charlton Heston looks: