Arrow season 5 villain July 8, 2019 16 32 64 128 Arrow season 5 villain prometheus Arrow season 5 villains list Arrow season 5 villain cast Arrow season 5 main villain Green arrow season 5 villain Arrow season 5 flashback villain Arrow (tv series) season 5 villain Arrow season 5 episode 18 Arrow season 5 episode 16 Arrow season 5 episode 19