Cast changes are baked into Doctor Who’s format for most of its 60-year run. As many long-time fans know, the Doctor regenerates periodically, usually when they are mortally wounded.

Jodie Whittaker has revealed some major casting changes are in store for Doctor Who. ... Wednesday season 2 cast: Greet the ghouls and outcasts joining Jenna Ortega in Netflix's morbid horror-comedy.

Social Media Doctor Who cast change leads to surge in social media interest. Billie Piper’s return may encourage a wider audience to tune in to determine the future direction of the show.