The Master reveals in Doctor Who

Some of my favourite moments from Doctor Who have been when The Master's new incarnation is revealed.

Here is some extra text so the spoiler's aren't viewable to people who haven't actually clicked on this post. I wouldn't want to randomly spoil it for someone.

[media=https://www.youtube.com/watch?v=FI_RB2URZPY]
[media=https://www.youtube.com/watch?v=TVHAmrIYFVY]
[media=https://www.youtube.com/watch?v=s97t6l0sKAo]
Missy is The Master
[media=https://www.youtube.com/watch?v=gbqnpb_PIkE]
Missy and The Master
[media=https://www.youtube.com/watch?v=k4bLMCle9ZY]
The O Master
[media=https://www.youtube.com/watch?v=0mSdk_H-JuE]

This last one isn't a reveal, just a fun scene with John Simm's Master
[media=https://www.youtube.com/watch?v=m0RvDZFN71A]