On Doctor Who, the process of regeneration for a Time Lord is a profound, excruciating transformation. Every cell of their being explodes with celestial energy, transforming their entire being. It’s probably for the best though, considering that if every Time Lord kept a bit of their past self, they’d look like the…
Source: io9 – Average Face of Every Doctor Who Star Is a Reminder We’re Very Glad Regeneration is a Complete Renewal