The season finale of Doctor Who, ‘The Reality War,’ was shocking for many reasons. However, the biggest surprise involved an appearance by actress Billie Piper, who played Ninth and Tenth Doctor companion Rose Tyler.

Ncuti Gatwa's Doctor Who exit brought back a familiar face to the TARDIS, but didn't explain how and why Billie Piper returned to the show.

With Doctor Who’s explosive May 31 series finale majorly hinting at Billie Piper taking on the iconic role of the Time Lord, fans may be stunned at what the actress once said about women playing the famous protagonist.