Tom Hulce was 22 in September 30, 1955 when he played the character 'Hanley'.
That was over 47 years ago in 1977.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 70, and has starred in 24 movies in total, 23 of those since September 30, 1955 was released.
In September 30, 1955, I think Tom Hulce looks: