Doctor Who: 10 Characters Who Should Return For The 60th Anniversary (And Beyond)

10. Osgood

One of the most meta things Doctor Who has ever done is introduce a character who's a massive fan of Doctor Who.

Petronella Osgood works for UNIT as a scientific adviser. She's nerdy, a bit wimpish, and definitely a self-insert for all the doting Whovians out there, as evidenced by her rather eye-catching dress sense – everything from Fourth Doctor-inspired scarves, to question marks on her collar.

Osgood was originally killed by Missy, but this actually turned out to be her double, which was due to the involvement of shape-shifting Zygons, and... look, there's quite a lot to recap here so we'll just cut to the chase and say that Osgood is currently alive and well, and presumably still working for UNIT.

With UNIT set to be a key part of the next era of Doctor Who, there's no reason why the Doctor's biggest fan can't show up too, while making lots of wink-wink, nudge-nudge comments about the past 60 years of Who.

Actress Ingrid Oliver clearly loves playing Osgood, and she's a fan-favourite character to boot. Her return almost makes too much sense.