DW Monsters: Cybermats

The Wirrn are the only new race introduced in season 12, with their story being followed by, in order:

• The Sontaran Experiment 
• Genesis of the Daleks  
• Revenge of the Cybermen

All of which feature their titular returning “monsters”. However, the last of these three does include, in addition to the Cybermen, their creations, the cybermats. These had previously appeared in a couple of Second Doctor stories, in slightly different form, and have also appeared once in the modern series. Outside the TV series, they have so far featured (typically quite briefly) in nine audio stories and one original novel – all, of which, of course, also include the Cybermen in more prominent roles. Two of the audios address the question of the cybermats’ origin and nature, which is probably the most detail we’re ever going to get on them; the two answers given are, however, contradictory.

DW Monsters: Wirrn

We don’t see any newly introduced races in the remainder of the first revived season after Dalek, but for the record, the relevant stories are:

• The Long Game – The “monster” here is the Jagrafass, which is, so far as we can tell, a unique being, not a race.
• Father’s Day – The Reapers are said to be completely impervious to damage, which makes them more of an obstacle than something that can be described with creature statistics so I will, at least for the moment, pass on them.
• The Empty Child – The real threat here are the nanites that create the empty children and they are only doing what they are doing because of a very specific malfunction. Thus, the empty children themselves are a one-off thing and the malfunctioning nanites are (game mechanically speaking) a disease, not a monster.
• Boom Town – features the Slitheen.
• Bad Wolf – features the Daleks.

With the Ninth Doctor’s run completed, I am heading back to the classic era, and looking at the monsters of the Fourth Doctor’s run. The first story of his run is Robot, which features a unique… robot… but after that, we get The Ark in Space, which introduces the Wirrn. 

Although we do briefly see a dead Wirrn in a later story, they otherwise do not appear again in the TV show. They do, however, feature in the 1998 novel Placebo Effect and in four audio stories. The most notable of the latter are perhaps Wirrn Isle, a direct sequel to The Ark in Space, and Wirrn Dawn, which is essentially Aliens with Wirrn instead of xenomorphs. As usual, a few comics and short stories round out the total.