|This needs a stretch.|
Jenny Turtletaub is a childhood friend (and possible current love interest) of Shaggy Rogers.
She is a Caucasian female with long blonde hair.
She has good acting instincts, managing to ad-lib a few lines in character to make the zombies appear to be part of the show.
Scooby-Doo! (DC Comics)
She became an actress, and was performing the role of Helena in an outdoor production of A Midsummer Night's Dream when zombies came on stage to disrupt the show. (To Zombie, Or Not to Zombie?)