The 'Riverdale' cast (Lili Reinhart, Cole Sprouse, Mädchen Amick, Skeet Ulrich, Madelaine Petsch, Vanessa Morgan & Casey Cott) on Archie getting jacked in prison, surprise ship, and a show crossover. #MTV #SDCC2018 #SDCC #Riverdale Subscribe to MTV: http://goo.gl/NThuhC More from MTV: Official MTV Website: http://www.mtv.com/ Like MTV: https://www.facebook.com/MTV Follow MTV: https://twitter.com/MTV MTV Google+: http://goo.gl/OGY79b MTV on Tumblr: http://mtv.tumblr.com/ MTV Instagram: http://instagram.com/mtv MTV on Pinterest: http://www.pinterest.com/mtv/ #MTV is your destination for the hit series #WNO, #VMA, #JerseyShore, #The Challenge, #MTVFloribamaShore, #TeenMom and much more!