The Hated execute those designated as Forsaken, and I'm not sure why they are called that. Kaliks Reborn is made out of parts of many other Servitors, not Kaliks-12. Randal is secretive. He bides his time. Not sure what Harvesters look like, but Ahamkara were space dragons. I believe their appearance varies to an extent, sometimes looking more bird-like or snake-like