Lou (Bill and the Three Jackets)

Lou (PROSE: Bill and the Three Jackets) was a student at St Luke's University in the late 2010s.

Bill Potts fancied her and would give her extra chips while working at the university canteen, causing her to gain weight. (TV: The Pilot)

Bill later came to Lou for help after her body had been stolen by Ziggy. Bill, now trapped in Ziggy's body, struggled, but ultimately succeeded in convincing Lou of her identity, and she helped Bill unmask Ziggy's plot to the Twelfth Doctor to permanently take over Bill's life. In gratitude, Bill promised Lou that she would receive "triple chips" next time. (PROSE: Bill and the Three Jackets)

Personality
Lou was aware that Bill was purposely giving her extra chips, and was grateful for it, as well as the warm, friendly smiles she received from her. Lou was comfortable with her physical appearance, even after gaining weight from the extra chips. This body positivity inadvertently saved her from becoming Ziggy's body-snatch victim before Bill fell victim to it, as Ziggy was only able to syphon negative psychic energy to undergo the process.

Lou enjoyed science fiction. Her affinity for the genre made her more openminded to Bill's plight when she came asking for help. (PROSE: Bill and the Three Jackets)