Simon

Simon is described as an old family friend of the Bishops and a long term ally. He is a con artist and thief who specializes mostly in computers and tech.

Personality
It is said Simon is incredibly focussed on the jobs he does and is hardly ever fazed. He is very clever; in Heist Society, it is said that "his mind is too full of algorithms and exponential alternatives for typical to have any meaning for him anymore". Kat and Hale take the blueprints of Taccone's house to him in Heist Society and he judges and gives them an opinion on how easy or hard it would be to get into it also. He adds them in their task to return the paintings to Taccone.