Bill Potts

Played by Pearl Mackie

"So the Tardis has dresses and likes a bit of trouble? Yeah, I think I'm low-key in love with her."

First Regular Appearance	Last Regular Appearance
The Pilot	Twice Upon a Time

Bill Potts was working in the canteen at St. Luke’s University in Bristol when she started to attend lectures by a man known only as “The Doctor”. The Time Lord took the sci-fi loving orphan under his wing for tutorials and it wasn’t long before alien interference interrupted their time together.

After facing off against a watery threat – and meeting the Daleks and Movellans as well! – Bill was welcomed aboard the TARDIS and travelled into the future to visit an Earth colony inhabited by Emojibots and then back in time to see the Frost Fair on London's River Thames.

The Doctor and Bill quickly became a strong duo as they battled space zombies, Ice Warriors, and the Truth Monks intent on subverting the human race. After being shot through the stomach on a Mondasian colony ship, Bill was taken to meet the mischievous Razor, a man who turned out to be an earlier incarnation of The Master.

Sadly, Bill was subjected to Cyber-conversion and in her final moments carried the dying Twelfth Doctor to the TARDIS. Thankfully, Bill was saved by girlfriend/'puddle girl', Heather, and the two ventured into time and space together hand in hand.