Doctor Who: Smile (BBC-1 22 Apr 2017, with Ralph Little)

In Smile, in the far future, at the edge of the galaxy, there is a gleaming, perfect city. This brand new human settlement is said to hold the secret of human happiness – but the only smiles the Doctor and Bill can find are on a pile of grinning skulls.

Something is alive in the walls, and the emojibots are watching from the shadows, as the Doctor and Bill trying to unravel a terrifying mystery…

The Doctor is played by Peter Capaldi, Bill by Pearl Mackie and Nardole by Matt Lucas. Guest-starring Ralph Little.

Written by Frank Cottrell Boyce and directed by Lawrence Gough.

Series: Doctor Who Season 10 Episode 2 (of 12)

Doctor Who: Smile airs on Saturday 22 April 2017 from 7.20pm-8.10pm on BBC One