Sontarans

Spud-like alien clones that thrive on war and will stop at nothing to earn the honour of doing battle with other races. There is the occasional charming Sontaran, of course, like Strax of the Paternoster Gang.
The Second Doctor is back and teaming up with The Sixth against alien gluttons and bearded Sontarans in Seville
Doc heads to Diagon Alley to investigate a pain-in-the-neck countdown and loses yet another companion in the process
Doc gets crowned president, Gallifrey gets invaded twice, and Leela and K-9 get no goodbye
A dinosaur appears in 1890’s London, and that’s not even the weirdest thing Capaldi must investigate in his debut adventure as the Twelfth Doctor
Eleven returns for a last hurrah replete with wooden Cybermen and naked Twister before his inevitable regeneration
The Great Intelligence employs those chaps from Buffy and a Back-To-The-Future letter to lure The Doctor to Trenzalore
Mary Poppins moonlights as Eliza Doolittle and The Great Intelligence feeds countless labourers to his carnivorous snowmen
Just A Quick Pre-Christmas-Special-Christmas-Prequels-May-Christmas Chat
Doc & Co encounter South African astronauts, a Sontaran census taker and a sex booger