Bill Potts is a fictional character created by Steven Moffat and
portrayed by Pearl Mackie in the long-running British science fiction
television series Doctor Who. In the show's tenth series, starting
with the first episode, Bill served as a companion of the Twelfth
Doctor, an incarnation of the alien time traveller known as the Doctor
(portrayed by Peter Capaldi).Bill Potts is introduced in the tenth
series premiere, "The Pilot". In their first encounter, Bill is
discovered by the Doctor, who is hiding out as a university professor.
Noticing her untapped potential, he offers to privately tutor her.
However, when Bill's love interest Heather (Stephanie Hyam) is turned
into a water creature that can travel anywhere in space and time, the
Doctor reveals to Bill his alien nature and takes her on as his
travelling companion, much to the chagrin of his assistant Nardole
(Matt Lucas), who urges the Doctor to stay in Bristol and keep watch
over a strange safe below the university.In subsequent episodes, Bill
learns about the Doctor's Time Lord nature and the rules of time
travel, averting alien invasions and ending conflicts on faraway
planets and deep space, growing closer to the Doctor all the while. In
the series finale, "World Enough and Time" / "The Doctor Falls", Bill
is shot through the heart after the Doctor's crew reacts to an alien
distress call aboard a spaceship, and is carried away by menacing
scientists to a lower deck where time moves much more rapidly. Bill's
life is saved, but ten years pass before the Doctor is able to reach
her, during which time she is converted into a Cyberman. Though
Cybermen are normally emotionless and hellbent on converting humans to
their ranks, Bill retains her humanity and sense of identity as a
result of particular experiences she has had travelling with the
Doctor. When the Cybermen are defeated, Bill is entirely alone: the
Doctor appears dead, Nardole has taken Mondasian refugees to safety,
and she is a horrific monster. She is rescued, however, by Heather,
who transforms her into a creature like herself and offers Bill the
choice of travelling space and time together, or being returned to her
life on Earth as a normal, living human again. Bill returns the
Doctor's body to the TARDIS, and bids him a sad farewell, before
taking off with Heather to explore the universe. Mackie makes a final
appearance in "Twice Upon a Time" as a living avatar of Bill's
memories, collected on her death by the Testimony Project. Recognising
herself as a continuation of Bill, she is delighted to see the Doctor
again, and helps him on his journey to accept he must regenerate
again.In April 2017, three new novels were released, featuring new
companions Nardole and Bill Potts. They are titled The Shining Man,
Diamond Dogs and Plague City. Before her premiere episode was
broadcast, Bill made a cameo appearance in a Doctor Who Magazine comic
strip, titled "The Daft Dimension", alongside Nardole in Issue #511
(May 2017). Bill Potts (Doctor Who) Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter