Doctor Who: Every Regeneration Ranked From Worst To Best
5. The Thirteenth Doctor (The Power Of The Doctor)
The shocking conclusion to The Power of the Doctor has reignited an interest in Doctor Who that the show hasn't seen in years.
After being mortally wounded by the Master, Jodie Whittaker's version of the character says her goodbyes to Yaz, before flying the TARDIS one last time.
Arriving on a cliff's edge, Whittaker takes one last look at the sun before saying "Tag, you're it". She then regenerates into... David Tennant!
WHAT.
This reveal is almost the entire reason for this regeneration being as high as it is. Up to that point, it had been your standard fare - sad music, drawn-out goodbyes, big blasts of energy. The usual. However, the shock of seeing the Tenth Doctor's face injected a whole new life into the ailing series.
Although we are yet to see what happens with Tennant's second go-around, this regeneration represents hope for a series that many have considered on the ropes for a very long time.