Jopling, Dmitri's loyal retainer and leather-clad assassin. Especially in the sequence where he stalks Kovacs in the museum. He's quite the Implacable Man.
The final train scene near the end is particularly chilling. Gustave and Zero (along with Agatha) are stopped by a death squad, who clearly wish to murder Zero on the spot. In contrast to the rest of the film, it is the only scene shot in black and white, which provides a stark contrast to the light-hearted, almost fantastical atmosphere that had prevailed thus far.
