Barbara Wright is a history teacher at the Coal Hill School alongside Ian Chesterton. We are introduced to her in the series’ pilot episode as the teacher of Susan Foreman, who is soon revealed to be The Doctor’s granddaughter. Perplexed by Susan’s strange behavior, Ian and Barbara follow her back to her home in a junkyard, where they see her enter a mysterious police box. They follow her in, only to discover the TARDIS, the time machine that serves as a home to Susan and The Doctor. Though they promise to keep the secret, the paranoid Doctor refuses to let them leave and instead whisks them off through space and time.