Katherine Waterston was 24 in The Invisible Dog when she played the character 'Girl at Pound'.
That was over 19 years ago in 2005.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 44, and has starred in 45 movies in total, 41 of those since The Invisible Dog was released.
In The Invisible Dog, I think Katherine Waterston looks: