Missy (Deep Breath)

Missy was a humanoid who claimed to the Half-Face Man that the Doctor was her "boyfriend". She expressed that she liked his twelfth incarnation's new accent. Following the fall of the Half-Face Man from his escape pod, she welcomed him to a location that she claimed to be his long-sought "promised land", and which she referred to as heaven. (TV: Deep Breath)

After the soldier Gretchen was killed by Dalek antibodies, she was joined by Missy for tea, referring to the place as "Heaven". (TV: Into the Dalek)