Jeremy Irons was 29 in Langrishe, Go Down when he played the character 'Otto Beck'.
That was over 46 years ago in 1978.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 75, and has starred in 117 movies in total, 114 of those since Langrishe, Go Down was released.
In Langrishe, Go Down, I think Jeremy Irons looks: