Typically,the bestDoctor Whocompanionsstick around for one or more seasons.
However, some ofthe greatestDoctor Whostoriesintroduce a companion who only appears in one episode, or a two-part adventure.
Despite this,these one-off characters are so fantastic that audiences fall in love with them.
Unfortunately, the fates of these personalities arent always positive.
Jenny has a lot of elements of the Doctor in her personality and appearance.
The main problem with Christina, however, is that she can be overly confident and a bit selfish.
Being a TARDIS companion is a family affair in Doctor Who.
This is especially true for Donna Noble, with many of her relatives proving significant.
Even before the events of the episode,Grace never backs away from difficulties.
The latest Doctor Who series introduces the Fifteenth Doctor, joined by new companion Ruby Sunday.
She takes in Ryan and raises him, and also falls in love with Graham despite being his nurse.
Immediately after meeting the Doctor, she lets the mysterious woman sleep on her couch and recuperate from regenerating.
Without hesitation,Grace helps the Thirteenth Doctor fight Tzim-Sha.
She truly enjoys the adventure, even though Graham is less enthusiastic than his wife.
Its strange that he doesnt ask Anita to join him in the TARDIS forDoctor Whoseason 15.
An alien from the planet Gallifrey travels through time and space to explore, solve problems and fight injustice while also making friends with human beings. His spaceship, called TARDIS, resembles a police box, but it is much more than it appears to be.
