Fan opinion about DOCTOR WHO’s humongous gallery of monsters/villains is almost as subjective as our views of the various Doctors; which enemies are the best or worst or scariest or the most fun. And each of us has a very personal wish list of which classic foes should return to the series.
No. 1 on my Return List list is the Zygons. I was thrilled that the 11th Doctor mentioned them in “The Power of Three,” but sadly, they did not actually appear onscreen. I desperately want those sucker-covered shapeshifters back in the series — ideally in a Lovecraftian-style episode.