Dembe has a very low number (10) on the Blacklist. The Blacklist as described by Reddington in Pilot (2013) is comprised of criminals he knew about but that the FBI either did not know about or were unable to capture. In Reddingtion's words, he'd been cultivating a list for over twenty years that contained politicians, mobsters, hackers, and spies. While the general impression early on was the list was only criminals he would pursue, the list was not exclusive to only criminals Reddington would turn in. The list also contained friendlies such as number 10 Dembe here, number 4 Mr. Kaplan in Mr. Kaplan (No. 4) (2017), and number 7 Tom Keen in Tom Keen (No. 7) (2015). All of them had very low numbers.
The actor playing Red's chief of security Baz, Baz, also happens to be a former C.I.A. officer and veteran U.S. Marine who founded an N.G.O. that rescues kidnapped children in the sex-slave trade.