Doctor Whoo-hoo! Legend of the Sea Devils sees the Doctor and companion Yaz address their romantic feelings

The upcoming 'Doctor Who' Easter special will deal with the Doctor and her companion Yaz's romantic feelings for one another.

‘Legend of the Sea Devils’ - which is Jodie Whittaker’s penultimate episode in the title role - sees the Doctor, Yasmin 'Yaz' Khan (Mandip Gill) and Dan Lewis (John Bishop) work together to fight one of the Time Lord’s oldest enemies, the Sea Devils, who they discover living on a coastal village in China.

The possibility of a romantic relationship between the two characters - who have long been dubbed 'Thasmin' by fans - was directly addressed when in the episode 'Eve of the Daleks', Dan spotted that Yaz had a crush on the Doctor and urged his fellow TARDIS traveller to "just tell her".

Showrunner Chris Chibnall has now spilled that the possibility of a romantic relationship between the two characters is a part of the plot of the upcoming adventure as they definitely "have something to talk about".

He said: "Dan has cottoned onto the dynamic between the Doctor and Yaz and from a distance, observed what they haven't been admitting to themselves. I think really, in 'Eve of the Daleks', both Yaz and the Doctor have hinted that they have feelings that they are suppressing and keeping quiet about.

"So there are some conversations that need to be had and you'll see those conversations developing and taking place in 'Legend of the Sea Devils'. The Doctor and Yaz have something to talk about!"

John, 55, is proud that it is his alter ego Dan who acts as the catalyst for the Doctor and Yaz to be honest with each other about how they truly feel about one another.

He said: "I think it was probably a surprise to both the Doctor and Yaz that it was so obvious to him that there was feelings between them. And I think as a character he is probably not the most obvious persons to be the matchmaker. Because he comes in as an ordinary bloke you would suspect is so bemused by the world that he's in is too busy to absorb what's going on around him to notice. But because the bond between them is so clear, and because I think as well as he says to Yaz in the New Year’s special - sometimes if you've got feelings for somebody you just have to act on them because otherwise if you don’t it will be too late."

Remaining tight-lipped, Mandip, 34, added: "So the relationship between the Doctor and Yaz has definitely developed further. There’s not an awful lot I can say about it but there's a lot of bravery, there's a lot of emotion and a lot of understanding, and openness ... Conversations are not concluded in this episode, but they still definitely have advanced from where they were at the New Year’s episode. There’s a lot of open and honest conversations."

'Legend of the Sea Devils' - which is the first appearance of the ocean-dwelling reptilian aliens since they battled the Third Doctor (John Pertwee) in 1972 - airs on BBC One and BBC iPlayer on Sunday (17.04.22) at 7.10pm.