Talking to Radio Times magazine alongside Bonnie Langford, Millie Gibson, who plays companion Ruby Sunday alongside Ncuti Gatwa’s Fifteenth Doctor, hinted that Ruby has her own problems which she will strive to solve over the course of the series.

“…with the companion now, it’s nice that you’re also you own character and dealing with your own problems aside from the Doctor’s. But I’m bracing myself because this is the calm before the storm. I know it’s going to go wild all of the sudden.”

“You’ll see Ruby’s back story and you’ll see how the 15th Doctor is amazing.”

Gibson agreed with fellow interviewee Langford that the episodes can be quite dark.

“Yeah, in a way, it starts off quite classic Doctor Who and then it goes a bit Black Mirror-y.”

Gibson, who grew up watching and loving Matt Smith’s Eleventh Doctor, has a new favourite Doctor.

“Oh my God, [Ncuti] has that giggly energy, like your best friend at school. I absolutely adore him and he’s going to blow everyone out of the water. He’s like no other Doctor you’ve ever seen. Now, he’s my Doctor.”

Doctor Who will return on 25 November 2023 with The Star Beast, the first of three Doctor Who 60th anniversary specials starring David Tennant as the Fourteenth Doctor and Catherine Tate as companion Donna Noble — followed by Wild Blue Yonder on 2 December and The Giggle on 9 December.

Ncuti Gatwa will star in his first full Doctor Who episode as the Fifteenth Doctor in the Doctor Who Christmas special The Church on Ruby Road alongside Millie Gibson as companion Ruby Sunday on 25 December.

A new 8-episode Doctor Who series starring Ncuti Gatwa and Millie Gibson will debut in Spring of 2024 followed by the 2024 festive special later in the year.