Yoo Ji-tae was 21 in Bye June when he played the character 'Do-gi'.
That was over 25 years ago in 1998.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 48, and has starred in 34 movies in total, 33 of those since Bye June was released.
In Bye June, I think Yoo Ji-tae looks: