ELI5: Explain Like I'm 5

The Master (Doctor Who)

Okay kiddo, so imagine there's this really smart and powerful alien called The Master. He's always causing trouble for a hero we know as Doctor Who.

The Master is kind of like a bad guy who likes to do bad things just because he thinks it's fun. He has a lot of cool gadgets and powers that he uses to make himself really strong and scary.

Sometimes The Master and Doctor Who are friends, but most of the time they're enemies. Doctor Who is always trying to stop The Master from doing bad things, like taking over the world or hurting people.

But even though The Master is a bad guy, he's still really important to Doctor Who's story. He helps make the show really exciting and interesting, because we're always wondering what he's going to do next!