Popsugar Celebrity Netflix How Old Are the Cast Members of Stranger Things? The "Stranger Things" Cast Members Are a Lot Older Than Their Characters 30 May 2022 by Britt Stephens View On One Page Photo 5 of 14 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Finn Wolfhard as Mike Wheeler: 19 Years Old Nineteen-year-old Wolfhard plays 15-year-old Mike Wheeler in "Stranger Things." Previous Next Start Slideshow NetflixStranger ThingsFall TVCelebrity FactsTV