TYB
I'm too iffy about this whole subject area to speak authoritatively, but it sure seems, given my limited xploring (and it's kinda impossible to verify this stuff) that there are different vehicles. Clones, drones, whatever. Seems to me they can build/grow a near-duplicate to be somehow remotely-controlled. Is the connected ear-lobe part of the tie-in? Interesting that we halve two brain lobes and that part of the ear is called a lobe. I agree that the 'A' model's ear lobes aren't attached the same way. I think the B-ears (bears/beers) are part of the intel/comms system.
Even the name Bi Den (a den/housing for the "bi"/2). Does "Bidan" suggest "B i.d. ad in"? Voice is same-ish. Behavior is sam-ish. I don't think mere actors/look-alikes can achieve all that. Who's chairing that op?