DW Monsters: Slitheen

Next, we reach Aliens of London, which introduces us to the Slitheen. These turned out to be memorable, often being referenced in later stories, although only being the focus of one other, Boom Town, later on in the same season. They (or members of their species) have, however, also had major roles in three episodes of the Sarah Jane Adventures, as well as two original novels, and four audio releases to date – the latter including one Torchwood release and one other not featuring the Doctor. 

It may also be worth noting that the alien race the Foamasi, from the Fourth Doctor TV story The Leisure Hive, are essentially the same concept as the Slitheen, although they look quite different out of their skin suits and lack the biological peculiarities. They’ve proved less popular, only re-appearing in one of the ‘90s novels.

DW Monsters: Gelth

The third story in the revised series is The Unquiet Dead, for which the alien menace are the Gelth. They are a one-off monster in the TV series, and, apart from a few minor mentions here and there, have only appeared once since, and that in a short story, rather than anything more substantial.

Description and Biology

We are told that the Gelth were originally regular organic beings. They somehow lost their physical bodies during the Time War, becoming gaseous instead. How this would work is obviously unclear, but, in fairness, we have little idea from the TV series of how exactly the Time War was fought or what the weapons brought to bear in it were capable of.

DW Monsters: The Forest of Cheem

The second story of the modern show is The End of the World, which features quite a few different aliens. It’s difficult to say too much about many of them, however, either because they are represented only by a single individual (the Moxx of Balhoon), they aren’t really aliens (the Adherents), or both (the Face of Boe and Lady Cassandra). This leaves only the Crespallions, who don’t seem all that different from humans, and the Forest of Cheem.

The Forest have not appeared again in the TV series, but have returned in a couple of stories in the audio anthology Tales of New Earth (which reveals "Cheem" to be the name of a planet to which they were transplanted), and occasionally in the comics.

DW Monsters: The Nestene Consciousness

The first story of the modern series features the Autons, which I have already described. However, the story also features the creators of the Autons, the alien race known as the Nestene, and it is now time to look at those specifically.

One could argue that, strictly speaking, any Auton story is also a Nestene story. However, not all such stories include a direct appearance by a member of the race. In the TV series, we have only seen them directly twice, in Spearhead from Space and Rose, although they have perhaps been more common in the assorted spin-off media. But, for the most part, there is, as one might expect, considerable overlap and, unsurprisingly, there are no Nestene stories that don’t also feature Autons.

DW Monsters: Eight-Legs

The next story we come to is The Monster of Peladon, which, for the most part, features the same aliens and creatures we have already seen in The Curse of Peladon. There is one new alien race introduced, the Vegans (yes, that’s actually their name), but the one individual we see isn’t around long enough to tell us much about his wider race. The tie-in novel Legacy does add that the race can see in the infrared and adds some further detail about their culture, but they remain tangential enough in the TV series itself that I am going to leave them out. Which brings us to the final Third Doctor story, Planet of the Spiders.

DW Monsters: Exxilons

The first two stories of season 11 are:

• The Time Warrior – The first appearance of the Sontarans.

• Invasion of the Dinosaurs – Dinosaurs are real-world creatures and often already statted up in RPGs

The story that follows is Death to the Daleks, which has exactly the main foes that you would expect it to have. It does, however, also feature the Exxilons. While there’s no reason to suppose Exxilons are dramatically different from other humanoids, they can serve as an example of a primitive race and do at least have some minor differences from regular humans. They appeared only once in the TV series, but have appeared twice in audio stories and, because of their history as an advanced space-faring power, have occasionally been mentioned in tie-in novels and elsewhere.

DW Monsters: Giant Maggots

Continuing through season 10, we get:

• Frontier in Space – While the Draconians are undeniably interesting, this is primarily due to their culture. In terms of basic attributes, they don’t seem that different from humans and can probably be described in the same way. Therefore, I will pass on them.

• I will also pass on the unnamed Ogron-eating blob monster from the same story, on the grounds we know almost nothing about it.

• Planet of the Daleks – It’s still not quite time for the Daleks on this blog yet…

Which brings us to The Green Death… and giant maggots!