Would Mason be the only innocent character?

I would consider both of these characters to be innocent. As a cook, Mason is detached.... he's busy with his work, and he never really builds a relationship with any of the other characters. On the whole, he might be considered a character who lightens things up and brings relief from what is a very serious subject.

Raleigh is an innocent, but he is innocent in a far different way. He is young, naive, and he has lived a life of privilege. His assignment has been requested and approved..... no red tape.