Over the course of its many years on television, the long-running
British science fiction television series Doctor Who has not only seen
changes in the actors to play the Doctor, but in the supporting cast
as well.The Doctor is usually accompanied in his travels by one to
three companions (sometimes called assistants). These characters
provide a surrogate with whom the audience can identify, and further
the story by asking questions and getting into trouble, (similar to
Dr. Watson in the Sherlock Holmes mysteries.) The Doctor regularly
gains new companions and loses old ones; sometimes they return home,
or find new causes on worlds they have visited. A few of the
companions have died during the course of the series.This list
includes characters who appear to be human and who are not known to be
anything other than human, even if having originated
extra-terrestrially. List of Doctor Who supporting characters Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter