Udo is a fighter, broad-shouldered, and Germanic. His face is hard, iron-jawed, yet his eyes have a deep sympathy to them. Still, he's a warrior through and through, the kind of guy who has scar tissue on his soul. Udo comes off as a grim man who has seen much battle, intent on getting the job at hand done. Though many may view him as thick initially, Udo is incredibly observant, patient, and cunning. Whether with a sword, flail, axe or table leg, Udo will perform his appointed tasks with the utmost skill and professionalism. But deep down Udo Massen is a conflicted man who wants nothing more than to help the weak and defend the innocent, and perhaps one day settle down with a woman and raise some pigs.
Falieri serves as a valuable secret agent for the Society. His aptitude for occult knowledge is unprecedented, and his understanding of science, history and current goings-on is invaluable, although he does tend to get things mixed up. Indeed, he's generally confused, morally ambiguous, and prone to bouts of raving. In a lot of ways he’s a liability, but there's a lot of useful information locked in his head (somewhere), so Salvus refuses to let him go.