I'm not the nominator, but for "Kingsman: Gary "Eggsy" Unwin and Kingsman Support Staff (Kingsman Movies)" - no, there is no specific group of support staff. I'd be hard pressed to identify any actual character who appears on screen in this category [the guy in the train tracks scene in the first movie??]. I hope you hear back from the nominator about their preferences, but if you don't, "Original Kingsman Support Staff Character(s)" probably works best.