Madelaine Petsch Takes Her Turn On Riverdale Rapid Fire "Riverdale" star Madelaine Petsch is chilling at the YH Studio where she weighs in on our now-legendary challenge, "Riverdale Rapid Fire"! Find out which co-star she would team up with to off somebody, hear her put Luke Perry on blast, and what her cheer us on as we indulge in some couch-dancing!
SOURCE: Young Hollywood at 01:00AM on May 10, 2017