Everyoe knows who Dick Tracy is, but probably 4 people in the world know who TRIGGER MACLIAMOURE is.
He's the Smoking Gun detective. The gumshoe with a gun for a head. Created by Scott Iwahashi. The character never saw print, even though Scott and Benito Cereno whipped up a short story featuring him.
I love this character, and hope to do a story with him some day, with Scott's permission. :D