Carbon Costume 
Donna Noble
Accidentally drawn onto the Doctor’s ship on her wedding day, Donna Noble never thought she’d see the lonely alien man again. But unable to get him out of her mind, she began searching for him wherever something strange or paranormal cropped up, eventually joining him as a full-time companion.
Martha Jones
Companion to The 10th Doctor, med student Martha Jones didn’t exactly expect her life to be interrupted by an alien in a blue box. Nor did she realize following him on a whim would lead her on a universe-spanning adventure and give her the skills to save the entire world.
Jack Harkness
Time agent, conman, companion – Jack Harkness has been all of that and more over the course of his long, strange life. If he’s not off adventuring with the Doctor, this omnisexual, immortal flirt can be found running the Torchwood Institute on Earth, defending the planet when the Doctor can’t.
Rose Tyler
Rose started out as a normal nineteen-year-old shopgirl until the Doctor blew up her shop (there were Autons inside at the time – don’t ask). But given the choice between an ordinary life and adventure through all of time and space, Rose chose the latter. Hey, who wouldn’t?
The 9th Doctor
What can you say about the Doctor that hasn’t already been said over his show’s fifty-year history? He’s nine hundred years old, he’s an alien and he travels through time and space in a 1963 blue police call box. Also, sometimes he looks like Christopher Eccleston and that’s pretty fantastic.
