Given those parameters, the portrayal of the sinister Timelord by Roger Delgado is head and shoulders above the attempt by his successor Anthony Ainley (though he gives it a valiant attempt) and not even to be compared with the weird portrayal of the Master as sadistic psycho which modern Who fans had to endure (as portrayed by John Simm), the less said about, the better.
Appearing first in the Terror the Autons in 1971 and sharing the limelight for 8 stories until Frontier in Space in 1973, the image of the charmingly sophisticated yet evil Time Lord, perhaps even superior to the Doctor in technical expertise, has been burned into my subconcious.
And of course, we do not have a Funko POP figure of the Master (or any POP Doctor Who related figures for that matter, as of this writing. something I decided to remedy.
- Both the head and body are from a Sinestro, POP, repainted. In fact, it's difficult to look at a Sinestro POP without seeing the Master in there!