Från en intervju med Jon Bokenkamp (Skapare / Executive Producer)
I know a few who, in the mythology of the show, will end up in the top 5. But, to be quite candid – Spader said this once – there are as many Blacklisters as there are episodes that NBC will let us do. There’s no hidden algorithm or method to the Blacklist numbering. But, they are sort of weighted. The Stewmaker might be off a bit because that was one of the first few episodes we did and he might be higher if we were doing his episode today. We do think a bit about it and wonder, “where does this guy fit? How would Red rank him?” So that’s how we come up with the numbers.