Richard E. Grant was 27 in Honest Decent and True when he played the character 'Moonee Livingstone'.
That was over 38 years ago in 1986.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 67, and has starred in 127 movies in total, 122 of those since Honest Decent and True was released.
In Honest Decent and True, I think Richard E. Grant looks: