Susan Foreman

Susan was the preferred name of the Doctor's granddaughter, who travelled with the First Doctor as his first companion. At different times in her life she used the surnames Foreman or English and, after her marriage, Campbell. Many details of Susan's early life were unclear, with numerous sources delivering contradicting accounts. According to most, Susan and the Doctor fled from their home planet together — with most accounts agreeing they had lived on the Time Lord homeworld of Gallifrey.