Barbara Steele was 19 in Bachelor of Hearts when she played the character 'Fiona'.
That was over 65 years ago in 1958.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 85, and has starred in 59 movies in total, 58 of those since Bachelor of Hearts was released.
In Bachelor of Hearts, I think Barbara Steele looks: