Doctor Who series 12 (2020)

The new series 12 of Doctor Who after the new series 11 in august 2018, the new series will be aired on BBC next year, or in 2020, or more.

Plot
After the companions from the 13th Doctor; Graham (Bradley Walsh), Yasmin (Mandip Gill), and Ryan Tosin Cole. Mouths later she meets a young teenager called Scarlet, soon to realized that she is the daughter of Ace, an old companion in the seventh Doctor. They had adventures along with another teenage alien, Saykin as their new friend on their journey. During the journeys Saykin scenes something about Scarlet that the Doctor can feel as well. Meanwhile, the Doctor has been getting small, secret messages of something, or someone from a long time ago.

Main Characters

 * Jodie Whittaker as The Thirteenth Doctor, a time-lord who is actually now a time-lady from the last regeneration.
 * Mackenzie Foy as Scarlet, she is the 17 year-old daughter of Dorothy Gale "Ace" McShane. Scarlet is just like her mother; she's into sport especially rounders when she sometimes uses the bat as her weapon through her adventures with the Doctor.
 * Jaeden Lieberher as Saykin, an teenage alien in disguise as a human to learn about it species. In his true form he has medium of dark purple skin with black hair and dark blue eyes. He has gift of scenting the sense of different species around him. Saykin also dramatically loves awkward situations.
 * Neve McIntosh as Lady Vastra, a Silurian who helps the Doctor doing the detective.
 * Catrin Stewart as Jenny, the human maid and wife of Lady Vastra.
 * Dan Starkey as Strax, a Sontaran commander who referred to himself as a nurse.