Carbon Costume

A companion of the 12th Doctor on the BBC TV series Doctor Who, Bill Potts (Pearl Mackie) begins as a student of the Doctor before learning his time-traveling secret. After she agrees to travel with him and his other companion Nardole, she sets out on a series of adventures. Fans love her as a smart, lovable, down-to-earth, sassy woman and the first lesbian portrayed on the show.