While he may not be as famous as Joker or Darkseid, Reverse-Flash is easily DC's most terrifying villain. Obsessed with the Flash, Reverse-Flash uses his speed powers to rewrite time, often in devastatingly personal ways. Reverse-Flash erased Barry Allen's only childhood friend from reality, framed his father for murder during his childhood, and even manipulated his children into becoming villains. What's worse, Reverse-Flash is always editing his own life, making him truly unpredictable – even removing his own sibling from DC's timeline. Now, an awesome cosplay captures just how chilling Reverse-Flash actually is.
https://screenrant.com/reverse-flash-cosplay-dc-scariest-villain/