Quite a few writers and artists have abused the fourth wall by putting themselves in their works. By sheer mass, the majority must be fanfic writers. Some use veiled substitutes for themselves or idealized versions (see Atlas Shrugged and Twilight), but others go right ahead and dive in. The wisest have done so in works under their exclusive control.
There is no way that Statesman “is” Jack Emmert in this sense. That was his handle and a role he played occasionally, and it can be unfortunate to put something you think of as your character under someone else’s control, but few people think they are killing Jack Emmert by proxy in the Lord Recluse Strike Force. Are Guards Black and Moor closer to the (now) 38 Studios employees? I really don’t know that they have any background, just a reference someone mentioned to me.
I mention this because Chris Sims, your friend and mine, points out the odd case of Grant Morrison. He wrote himself into an Animal Man comic, which means that he is an official, in-continuity DC character. (One can argue about whether DC can claim copyright on his person or likeness, make action figures, etc. This is not my point today.) Another writer took advantage of this and used Grant Morrison as a villain in his comic, killing him off quickly.
As of now, Kill Ten Rats is the only place on record in the entire universe (well, Google) as using the phrase “see Atlas Shrugged or Twilight.” It takes a rare sagacity to put those words together.