Fallout showrunners Graham Wagner and Geneva Robertson-Dworet explain why Lucy follows The Ghoul and what it means for season 2. Created by Wagner and Robertson-Dworet, based on Bethesda's video game franchise of the same name, Prime Video's post-apocalyptic series follows three strangers who cross paths in the harsh and hazardous wasteland of a ruined Los Angeles, each with their own mysterious pasts and personal quests. Fallout's cast and characters include Ella Purnell as the young Vault Dweller Lucy, Walton Goggins as The Ghoul/Cooper Howard, and Aaron Moten as the Brotherhood of Steel member Maximus.