Ashley Tisdale & Aly Michalka Lunch her New Movie Hellcats Poster:  Check out the hot new Hellcats poster! Starring Ashley Tisdale and Aly Michalka, the upcoming CW series follows Marti (Michalka), a pre-law college student from the wrong side of the tracks. When budget cutbacks and her mother’s constant carelessness cause her to lose her scholarship, she joins the Hellcats, the college’s competitive cheerleading team. Gail O’Grady, Heather Hemmens and Robbie Jones round out the cast.