Really covering all your bases with that. No way for me to somehow squeeze a classic or eu master in with that description. Good on you. You win.

Probably Sacha? It would be Jacobi but he only really has one scene as the Master, regardless of how brilliant it is.

I like Gomez as Missy because she's calculating and cruel but not a raging lunatic like Simms' and Dhawan's portrayals, both of which I have a hard time watching. I have not gotten to The Master in Classic Who yet, so I do not know how the character is "supposed" to be.