Jessica Parker Kennedy was 21 in Santa Baby when she played the character 'Lucy the Elf'.
That was over 17 years ago in 2006.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 39, and has starred in 21 movies in total, 19 of those since Santa Baby was released.
In Santa Baby, I think Jessica Parker Kennedy looks: