On: No leap second will be introduced at the end of December 2026

[latexr]

For further context, Doctor Who is a member of the species.

[tialaramex → latexr]

I think if we're being pedantic, the character's name is "The Doctor". The TV show is named "Doctor Who" but the character doesn't call themself that and a name is what something is called.

[Edited to avoid assigning a gender to a character who has had different genders]

[throw-the-towel → latexr]

And, I think, the last of them remaining.

[stevekemp → throw-the-towel]

The Master always comes back, of course. They're such perfect frenemies.

(Depends on the era of course, sometimes there are other timelords, sometimes not.)