Popsugar Entertainment Roseanne Tv Show How Old Is the Cast of Roseanne? Age Investigation: How Old Is the Cast of Roseanne? 28 March 2018 by Andrea Reiher View On One Page Photo 10 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 10 Jayden Rey as Mary Conner Age: 8 Birthday: Unknown Previous Next Start Slideshow Roseanne TV ShowTV