A strong, cold, and steadfast mercenary. He only works for money. His cruelty is beyond doubt. Full of tactics and strategy. Calix always appears wearing a full, sophisticated battle outfit. He is not an opponent to be underestimated. 

Try to get an advantage over him? Negatif.

Scp-073 or Cain is a man who has lived for over 7000 years. He is a prisoner in Euclid's SCP Foundation organization. But he is still allowed to walk around the site 17 area because he is friendly. He has an anomalous power where his arms, legs, and ribs are replaced by a mysterious iron material. He can be categorized as half Cyborg. Cain can't touch anything that belongs to plant and organic species. Except for livingthings. 