It's a mighty big honor to be chosen as the companion to a Time Lord like Dr. Who. You get to travel, fight crime, and possibly get your own spin-off show. So we here thought to take a look back at the Who-man's right hand men and women of the past decade....
'Doctor Who's' David Tennant will save the day before exiting
Comic-Con: 'Doctor Who'
'Doctor Who' specials land at BBC America
Meet the new Doctor Who, Matt Smith