Everyone is down a mine. (Incidentally, it's funny how often Doctor Who in the 70s and 80s keeps coming back to mines.  I'm sure ...

The first fully-fledged tentacular monster in Doctor Who - in the senses of being both properly cephalopodic  and  of being a central monst...

Erato the Tythonian in 'The Creature from the Pit' doesn't much resemble an octopus, but nevertheless he/it is a shapeless, amor...