'Doctor Who' series 13 trailer gives first look at John Bishop and 'Game of Thrones' star in cast

John Bishop has appeared in the new 'Doctor Who' trailer. (BBC)
John Bishop has appeared in the new 'Doctor Who' trailer. (BBC)

Doctor Who fans have been treated to their first glimpse of John Bishop as new companion Dan in the trailer for series 13.

The new series trailer was unveiled during Comic-Con @ Home and promises as action packed a show as ever, bringing Jodie Whittaker back to the helm as the Doctor.

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She will be joined by returning companion Yaz, played by Mandip Gill, while departing Bradley Walsh and Tosin Cole have been replaced by comedian John Bishop as the Doctor's new mate Dan.

He can be seen in his first major acting role alongside Whittaker and Gill in the trailer as they navigate universes and timezones together.

The trailer bills the series as "her biggest adventure yet" and it certainly looks as though there is plenty in store for Whovians to get their teeth into with explosions and worried faces packing out the sneak peek scenes.

Yaz can also be heard telling the Doctor: "You're hiding something."

Eagle-eyed viewers may have spotted another new face in the trailer, too, as Game of Thrones star Jacob Anderson popped up as mysterious recurring character Vinder, who will be on side with the Doctor and friends and will help them out in the face of adversity.

Reason: Doctor Who is nearing its 60th anniversary of being on our screens, but the British obsession with the time-travelling Gallifreyan shows no sign of abating. A new special airs on New Year's Day.
Jodie Whittaker is back as the Doctor in series 13. (BBC)

Anderson is best known for having played the Grey Worm in Game of Thrones but cuts quite a different character in the BBC series as he's shown in leather jacket rather than battle armour.

When he was cast, Anderson said: "The Doctor has been a part of my life forever, from watching and rewatching the serials on VHS as a kid and being terrified, to unexpectedly finding my eyes watering when the Tenth Doctor said 'I don’t want to go', I always wanted to live in the Whoniverse.

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"Not only has a lifelong dream of mine now been fulfilled, but to be playing a character as fun, adventurous and dynamic as Vinder is the cherry on top. This is very cool."

Doctor Who will return to BBC One later this year.

Watch: Billie Piper reveals who she wants to play the next Doctor