Little snarky, often teasing, friendly but not too trusting, tremendous sense of pride, well-educated, curious about all scientific inventions, from Serbian-Italian descent, bad/poor memory, forgets things easily like small details, ambidextrous, killed his former mentor Alva Lorenz, hates his father after losing all their wealth, mom died, 175 cms tall, a little silly, respectful, physically bit weak, shocks people on accident, obsessed with his invention, barely pays attention to surroundings.