Popsugar Entertainment Stranger Things Stranger Things Season 3 Cast Stranger Things Season 3: The Entire New and Returning Cast of Characters 3 January 2019 by Amanda Prahl View On One Page Photo 10 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 10 Sadie Sink After being first introduced in the second season, Sink is back for another year as "Madmax" Max Mayfield. Previous Next Start Slideshow Stranger ThingsTV