A brief trailer for the Doctor Who spring special, reveals a welcome return of the Sea Devils, a monster first introduced in Doctor Who Season 9.

First seen with Jon Pertwee’s third Doctor in The Sea Devils, the classic monster will once again emerge from the deep to terrorize Earth’s coast in Legend of the Sea Devils.

She killed my father and she released the demon…
— Ying Ki

Legend of the Sea Devils finds the Doctor, Yaz and Dan in 19th century China, where a small coastal village is under threat – from both the fearsome pirate queen and a monstrous alien force which she unwittingly unleashes. Will the Doctor, Yaz and Dan emerge from this swashbuckling battle with the Sea Devils to save the planet?

Along with the main cast Jodie Whittaker (the Doctor), Mandip Gill(Yaz) and John Bishop (Dan), the episode also features:

Crystal Yu as “pirate queen” Zheng Yi Sao, also known as Ching Shih (Madame Ching)

Arthur Lee as Ji-Hun

Marlowe Chan-Reeves as Ying Ki

The was a large casting call for Asian men to play Chinese pirates and villagers during the filming of the special in June 2021.

Known filming locations for the special are Sully Beach on June 25 and July 15, Cardiff Bay on July 26 and sets at Roath Lock Studios featuring a Chinese Village and the deck of a sailing ship.

Written by Chris Chibnall, rumoured to be co-written by Ella Road, and directed by Haolu Wang, Legend of the Sea Devils, will air in Spring of 2022.