Ethan Clark is an agent with the CIA.
He has been one for quite a long while when we meet him in his first recorded adventure. In that time there is very little he has not seen or done or heard and his experience is both a boon and a chain. While his years in the field causes him to suspect anybody and everbody, it also can blind him to the fact that a truth is a truth.
Many of those around him, and many more in the current Administration, wants to deal with things as black and white, this or that, Clark has learned to see in shades of gray. If asked, most of those who work with him would say Clark leans far more to the darker shades, finding bad in lots of things. His often sarcastic outlook on life would back that up.
More when I have finished this series.