The Crab with the Golden Claws: Part 1 - S1-E1
Revealing mistake: After the three Karaboudjan members begin to approach Daws, Kuraki then takes out his gun and says "Follow me." Kuraki then begins to leave the shot. He has a black mustache, but just as he almost leaves the shot, his mustache temporarily becomes flesh colored for a brief frame. (00:02:10)