Justice Moroi was a vampire law enforcer who had business cards which read "Judge, Jury and Executioner". The real Justice Moroi was killed by Boris before the episode "When Vampires Go Bad". Ingrid called Moroi the second most powerful vampire (presumably behind the Grand High Vampire) at that time.
Trivia[]
A moroi is a type of vampire or ghost in Romanian folklore. Wikipedia
His red armor maybe a refrence and could be based upon Vlad III The Impaler's red armor that was depicted in Bram Stokers Dracula (1992) Film.