Madelaine Petsch of ‘Riverdale’ tells Teen Vogue her “first” everything! From her first Christina Aguilera CD to her unexpected friendship with Gordon Ramsey, Madelaine is an open book. Is her first thought in the morning always to walk her dog, Olive? Was her first audition a surprising success or a complete disaster? What was her first big splurge after wrapping ‘Riverdale?’

A new season of 'Riverdale' airs January 22, 2020 on the CW!