'Da Vinci's Demons': Tom Riley & Gregg Chillin On Riario & Nico

'Da Vinci's Demons': Tom Riley & Gregg Chillin On Riario & Nico

Tom Riley and Gregg Chillin talk to Access about the change in Riario (Blake Ritson), following their escape from the Incans. How has not finding the Book of Leaves changed him? And, how has Riario had an effect on their pal, Nico? “Da Vinci’s Demons” airs Saturday nights at 9 PM ET/PT on Starz.