Keiko Kitagawa was 17 in Pretty Guardian Sailor Moon Special Act: We're Getting Married!! when she played an uncredited character.
That was over 20 years ago in 2004.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 37, and has starred in 50 movies in total, 50 of those since Pretty Guardian Sailor Moon Special Act: We're Getting Married!! was released.
In Pretty Guardian Sailor Moon Special Act: We're Getting Married!!, I think Keiko Kitagawa looks: