In the 2017 Arrowverse crossover "Crisis on Earth-X", it is referred that though most parallel universe versions of Hitler were defeated, one from Earth-X had successfully conquered his world after building the atomic bombs before the United States did. He used them to defeat the Allies, which created ash clouds from the nuclear attacks that blocked the sunlight and turned the sky red since, thus making this iteration more dangerous of them all until his death in 1994. Despite this world is conquered by the Nazis, even SS officers like Eobard Thawne (Tom Cavanagh) and Overgirl - a villainous doppelgänger of Earth-38's Supergirl /Kara Zor-El (Melissa Benoist) express contempt over the deceased Führer and consider him a disgrace to the Reich. By 2017, his successor is the villainous archer Dark Arrow, a doppelgänger of Earth-1's superheroic archer Green Arrow / Oliver Queen (Stephen Amell).