Like most of Doctor Who…just go with it.

There used to be, now there is only one.

One with many faces.

You need to watch it to get it.

Last I saw we were on 13, wasn’t the biggest fan of her. But I didn’t like 11 at first either

Yes, but it’s complicated. The most recent incarnation is called the 13th Doctor, but there was also one between 8 and 9 called the War Doctor, so the current one is technically the 14th Doctor, and the one that will be called the 14th Doctor will be the same as the 10th.