10 Most Paused Doctor Who Moments

10. Wait, Was That Rose?! (The Poison Sky & Midnight)

In a neat callback to his first series, appearances by the Bad Wolf herself were seeded throughout Russell T Davies' fourth series in charge of Doctor Who.

There were the obvious ones – appearing to Donna in Partners in Crime, and then having a starring role in Turn Left – but much more pause-worthy were the less obvious ones.

In The Poison Sky, Donna is trapped inside the TARDIS and receives guidance from the Tenth Doctor on how to reopen the Sontarans' teleport link. A little bit before this, a muted image of Rose flashes up oh-so briefly on the TARDIS monitor, shouting for the Doctor.

Interestingly, this blink-and-you'll-miss-it cameo was a late addition to the episode. It was originally filmed for Midnight, but was reused for The Poison Sky when RTD realised how successful Billie Piper's top-secret cameo had been at the end of Partners in Crime.

And of course, Rose can be glimpsed in Midnight on a shuttle monitor for a split-second while the power is down following an attack by the entity. However, because he and the rest of his fellow passengers are too busy stressing about their situation, the Tenth Doctor doesn't see her.

If only he had a pause button himself! Honestly, that seems like something the sonic screwdriver would be able to do at this point, doesn't it?

These cameos sent fans into a frenzy back in the day, and were discussed and analyzed to death in the build-up to Series 4's huge blockbuster finale.