Fan CastingDoctor Who World Enough In Time & The Doctor Falls Retake

The Doctor decides to test how good Missy has become by sending her on a trial run with Bill and Nardole. However, when things go wrong, the Doctor takes over. With Bill trapped in a different time zone, can the Doctor make it to her before it is too late, and who are all those people getting cured? As he struggles to resist regenerating, the Twelfth Doctor prepares to make a last stand With The Tenth Doctor against the ever-growing army of Cybermen. However, with Bill still a Cyberman, and Missy gradually turning to her old wicked ways as the Saxon Master reminds her of who she used to be, can the Doctor convince his old friend to finally be good before he falls?