Species (Time Heist)

An unnamed species was present at the Bank of Karabraxos. One called the Teller was used to read the customers mind to search for criminal content. If any was found it turned his/her brain to 'soup' said the Twelfth Doctor. The other known member of this species was a female locked up inside a vault that would be opened by the Twelfth Doctor. He dropped them off on a planet where they lived together.

They both were large and had an eyestalk either side of their head.