Popsugar Celebrity Derry Girls Derry Girls Cast in Real Life If You've Only Ever Seen the Cast of Derry Girls in Character, You're in For a Shock 6 February 2020 by Amanda Prahl View On One Page Photo 1 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Saoirse Jackson as Erin Quinn on Derry Girls Previous Next Start Slideshow Derry GirlsTV