Henry Brandon was 19 in The Sign of the Cross when he played the character 'Colosseum Spectator (uncredited)'.
That was over 91 years ago in 1932.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
In 1990 he died aged 77, starring in 91 films in his career, 90 of those after The Sign of the Cross was first released. If he were alive today he would be 111.
In The Sign of the Cross, I think Henry Brandon looks: