Doctor Who Concordance Wiki

Elongated eyeless life form with arms, legs and a tail[]

(DW: "Mindwarp")

This prop was a commercially available replica of a chest-burster from the Alien film franchise, and was placed on the set as an in-joke.

Tentacled life form[]

This alien life form incubated in the brain, disrupting its shape and function. When attacked or threatened, it released a toxic gas that was fatal to humans. (TOR: "Fragments")