- 9of 59 K-9 is currently #9 on:vote on this list views: 79435
These are the greatest Doctor Who companions of the sci-fi series in history, as voted on by a rabid group of Who fans. Doct...more
- 36of 87 K-9 is currently #36 on:vote on this list views: 21544
A list of the most awesome robots of all time, voted on by the Ranker Community. Robots are our helpful, obedient slaves.... right up u...more
- 8of 38 K-9 is #8 on:by The 12th Doctor views: 1441
We love all the companions, but some are better than others. Vote on this list to see who really are the best of the best.