Doctor Who: 30 NuWho Characters Who Would've Made Fantastic Full-Time Companions
3. Sally Sparrow
Appeared in: Blink.
In some ways, it's good that Carey Mulligan said no to becoming a full-time companion because she is so synonymous with one of the greatest Doctor Who episodes of all time. Plus, she would've been devastated at not making it on to this amazing list! Yeah, that argument was about as convincing as a wobbly set on Classic Who.
Even just via an DVD Easter egg, Sally and the Doctor bounce off each other so well. Add in her adeptness at peeling off wallpaper at the perfect time, go give that woman a TARDIS key.
Mulligan totally owns the episode as Sally Sparrow. In fact, had Blink been made in more recent years, there surely would've been clamour for her to become the Doctor at some point. Wonder if her career's taken off...
She has the time vortex range of a great Doctor: the way her character, Sally, pieces all the clues together with intrepid determination, how she deals with the bittersweet loss of Kathy and Billy, has a companion in the form of shorthand Larry, and even wears a natty scarf and long coat. Her forthright line of "I'm clever and I'm listening. And don't patronise me because people have died, and I'm not happy. Tell me", is very Doctor.