Chelan Simmons was 16 in Ratz when she played the character 'Jennifer Martin'.
That was over 24 years ago in 2000.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 41, and has starred in 32 movies in total, 31 of those since Ratz was released.
In Ratz, I think Chelan Simmons looks: