Project Runway returns for Season 21 on Thursday, July 31 at 9/8c with a two-hour premiere on its new home, Freeform. But the network change - the fashion-design competition show previously aired on Lifetime and Bravo - is hardly the only change you'll see as the revived series undergoes a makeover following its two-year hiatus.

The supermodel and executive producer Michael Rucker discuss their homecomings to the series, the dynamic cast and why Christian Siriano remained as the designer’s mentor with the network shift.