Capaldi just gave us a small clue, revealing the new companion will be female. While this makes sense — as most companions are women — some wondered whether the show would try something new, be it a male companion, a genderless alien or more than one accompanying the Doctor on adventures through space and time.

“I think the companion has to be someone who’s not so impressed by the Doctor – she’s not an assistant, she’s not a servant, she can’t be that,” he explains to La Lata TV. “She has to be someone who really says, ‘Are you sure that’s the right thing to do? What are you doing?’ and also doesn’t take him seriously.”