Popsugar Celebrity Streaming Cute Photos of the I Know What You Did Last Summer Cast We're Convinced That the Cast of I Know What You Did Last Summer Are Real-Life Besties 18 October 2021 by Njera Perkins View On One Page Photo 5 of 17 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by Madison Iseman (@madisoniseman) Share This Link Copy ← Use Arrow Keys → 5 Previous Next Start Slideshow StreamingAmazon PrimeCelebrity FriendshipsCelebrity InstagramsRed CarpetTV