Dean S. Jagger was 34 in The Paddy Lincoln Gang when he played the character 'Rob McAlister'.
That was over 10 years ago in 2014.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 45, and has starred in 8 movies in total, 6 of those since The Paddy Lincoln Gang was released.
In The Paddy Lincoln Gang, I think Dean S. Jagger looks: