Step back for a minute and look at the casting for earlier F13s... For the first film, they grabbed TV actor Betsy Palmer. The only experience in the next couple of casts was minor soap opera and commercial work, but Part 4 featured actors who had already worked in other things, including Peter Barton, Corey Feldman, the Doublemint twins, and Crispin Glover. None were major stars at that point, but all had enjoyed some commercial success. In short, it's clear from looking back that had the makers of the first four F13s or so been able to afford name actors with built-in audience appeal (ala, Disney and CW actors), they certainly would have gotten them. Instead of groaning about this obviously R-rated film having teen stars in it, we should be happy that today's glut of cable channels and DTV movies and the success of recent horror remakes have made enough of those marketable stars to give this film some help in the casting department. Anything that helps ensure the prolonged life of this franchise is a positive thing, in my book.