WARNING: Embargoed for publication until 00:00:01 on 06/06/2017 - Programme Name: Doctor Who S10 - TX: 10/06/2017 - Episode: Empress of Mars (No. 9) - Picture Shows: ***EMBARGOED UNTIL 00:01hrs 6th JUNE 2017*** Jackdaw (IAN BEATTIE) - (C) BBC/BBC Worldwide - Photographer: Simon Ridgway