The Goo-dreads

The Goo-dreads are monsters that appeared in Season 12, Episode 8, Where's My Mommy? of Doctor Who.

Inhabitance
They are inhabited in an underground asylum filled with duplicates of the same thing.

Appearance
They are entirely blue with small white tattoos. They wear a suit and have long sharp teeth, with a smile up to their ears. They have short black hair.

Powers and abilities
They follow you around slowly asking the same question over and over again, "Where's my mommy?".

They grab you by the arm and bring you to their cell. They then thank you for being with them, explain how lonely they are, saying how hungry they are, and then they eat you.

History
They were created by evil blue space aliens, created during the Big Bang. They are a family of evil aliens.

They are disguised as children in an asylum who are in danger to lure people in.