When Kovacs is walking through the garden, about to enter the dinner party at Suntouch house, a bloodstain is visible on the right side of the shirt, just below the collar. In the next short, the stain has disappeared in the shirt is clean white. The bloodstain only appears after the fight in zero gravity, much later in the episode.
The origins of the protagonist are said to be "Japanese and Slav" corresponding to his name, Takeshi Kovacs. However the surname Kovacs is not Slavic but Hungarian (and means 'Smith').