John Velvet is the Director of the American Intelligence Machine aka A.I.M. or The Machine. As such, his position is one of tremendous power and influence. It's also a position that puts him in opposition with Dillon whenever they run into each other as they often do. My pick for the guy:
Why Ray Stevenson? I just like the guy. And I don't think he gets enough roles where he gets to wear cool tailored suits.