- He's ambidextrous and prefers using his left hand
- He doesn't require sleep, and doesn't sleep as he wants to be able to assassinate others when everyone is deep in sleep
- He doesn't seem to get angry, and no one really wants to find out if he's able to get angry
- He doesn't have a favourite season
- His father is confirmed dead, while his mother's status is unknown as he didn't bother to find out
- His name is to showcase the Slavic inspiration, while his surname is because I really wanted an OC with a surname starting with Z. In Russian, his name is spelt as Борис Журов (Boris Zhurov)
- His signature song is Human Nature by Sin Shake Sin
- He's always on time, no one really knows whether he arrives earlier than he claims but they all suspect that the answer is a firm yes
- Beings assume that he's incapable of feeling emotions, something which isn't true but doesn't deny as there's no advantage in being seen as someone who can feel
- He's a casual smoker, and his favourite brand is Merlburo
- In a Real World AU, he's from Russia
- In a Real World AU, he's 43 and claims to be a cleaner in a generic office company. He's actually a contract killer (contract killing not known to others)