- 8of 54 K-9 is currently #8 on:vote on this list views: 93935
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
- 35of 88 K-9 is currently #35 on:vote on this list views: 26444
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
- 7of 38 K-9 is #7 on:by The 12th Doctor views: 1596
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.