‘The Name of the Doctor’ airs on Saturday 18 May on BBC One.

Coleman revealed: “The finale story is such a fantastic idea; it’s epic and huge and filled with drama. It was really exciting to sit down and read the script, she continues. There are little bits and pieces, which Steven planted a couple of years ago. It’s just really clever and a crucial moment in the Doctor’s life that you get to explore with the best baddies!”

The actress also teased: “All I can say is that Clara hasn’t just met the Doctor three times before…”

The episode’s official synopsis reads: “Clara is summoned to an impossible conference call, alerting her that the deadly Whisper Men are closing in on Vastra, Jenny and Strax. Someone is kidnapping the Doctor’s friends, leading him toward the one place in all of time and space that he should never go. It’s a deadly trap that threatens to unravel his past, present and future…”

> Catch up on all the 50th Anniversary Special news and rumours so far in our summary.

What are your hopes for the finale? Let us know below…

> Order Series 7 Part 2 on DVD on Amazon.

> Buy Series 7 Part 1 on DVD on Amazon.

Watch the Series 7 Part 2 trailer…