It’s out with the new and in with the old next week as we bid farewell to Ashildr (but for how long?) to welcome back one of the most iconic foes in Doctor Who history.

The Zygons will be back with an almighty vengeance as Series 9 continues but their shape-shifting shenanigans won’t be the only cause for confusion. Osgood, who was killed off in Series 8, is also back, but who can be trusted?

The Zygon Invasion airs on BBC One on Saturday 31st October at the slightly earlier time of 8:15pm.

“What took you so long, old man?” Click here to discuss The Woman Who Lived…