Board Thread:Help!/@comment-7657843-20170407125424/@comment-26845762-20170407130838

Technically, Ainley, Keith Potter, and "another stolen" are all just the crispy Master in various stolen bodies. In fact, Potter is just Ainley temporarily projecting his mind into another body.

Also, 17, 18, 19, & 20 are all just the "essence of Master" stealing a series of bodies.

Also also, you seemed to miss one incarnation that appeared in a few 90s books. He was in First Frontier (novel), Happy Endings (novel), and Housewarming (short story).

Also also also, I'm sure there are different interpretations to he Master's life than mine. Take everything I said with a grain of salt.