Doctor Who 10x1 ⚡

Bill realizes the fluid is just looking for a way home. She lets go of "Heather," and the Doctor decides to take Bill on as a full-time traveling companion. 2. Why This Episode Matters

The story follows Bill Potts, a canteen worker at St. Luke's University, where the Doctor has spent decades posing as a professor while guarding a mysterious vault. Doctor Who 10x1

Bill is drawn to the Doctor’s lectures and he eventually agrees to tutor her. Bill realizes the fluid is just looking for a way home

She was the series' first openly gay full-time companion, bringing a grounded, human perspective to the Doctor's alien world. 3. Notable Guest Stars Stephanie Hyam as Heather, the "pilot". Jennifer Hennessy as Moira, Bill’s foster mother. Nicholas Briggs providing the voice of the Daleks. The Pilot (TV story) | Tardis | Fandom Why This Episode Matters The story follows Bill

This episode sets up the season-long mystery of the "Vault" beneath the university, which the Doctor and Nardole are sworn to protect.