THE GIGGLE: FIRST LOOK IMAGES FROM DOCTOR WHO UNLEASHED

Doctor Who's BBC centenary special saw Jodie Whittaker's Thirteenth Doctor regenerated into David Tennant, who returns to screens as the Fourteenth Doctor alongside Catherine Tate as Donna Noble for Doctor Who's 60th Anniversary specials.

The BBC have confirmed that the third and final special - The Giggle - will air on Saturday 9th December at 6:30pm on BBC One.

The official synopsis reads: "The giggle of a mysterious puppet is driving the human race insane. When the Doctor discovers the return of the terrifying Toymaker, he faces a fight he can never win."

Heartstopper star Yasmin Finney joined the cast last year in the role of Rose, the daughter of Donna Noble. Jacqueline King will be reprising her role as Donna’s mother Sylvia, and Karl Collins as Donna’s long suffering husband, Shaun.

The show also welcomes Ruth Madeley who will be appearing as Shirley Anne Bingham. American star of stage and screen, Neil Patrick Harris, also joined the cast as classic villain The Toymaker.

Ncuti Gatwa's first official Doctor Who episode is due to air over the festive period, however we know from the trailer that Gatwa will appear in the specials in some capacity. Showrunner Russell T Davies has promised that "the path to Ncuti’s Fifteenth Doctor is laden with mystery, horror, robots, puppets, danger and fun!".

Doctor Who is available on BBC iPlayer in the UK.