WARNING: Embargoed for publication until 00:00:01 on 27/06/2017 - Programme Name: Doctor Who S10 - TX: 01/07/2017 - Episode: n/a (No. 12) - Picture Shows: ***EMBARGOED UNTIL 00:01hrs 27th JUNE 2017*** Missy (MICHELLE GOMEZ), The Master (JOHN SIMM) - (C) BBC/BBC Worldwide - Photographer: Simon Ridgway