In the 40-second clip from the BBC, Time Lady Missy (played by Michelle Gomez) appears to be getting friendly with the TARDIS as she paints the Time Lord's Time Travelling machine on set in Cardiff.
After a couple of seconds, Missy turns to address viewers as she says: "Hi. Well, they've got me back again. I'm hard at it."
As she continues to brush away, the Doctor Who villain continues: "Just popping on a base coat, it's a lovely colour of blue here I've got. It's the kind of blue you'd find on a T and ends on an ARDIS."
Missy adds: "Hard at it. I'll be coming out of this soon. Right, another coat."
While the video may simply be signalling the return of the much-loved Doctor Who villain as actress Michelle, 50, films on set, it comes at a time when there has been speculation that the next Time Lord could be female.
As fans will know, Missy is a Time Lady and the first female version of the Master who has previously been portrayed by male actors.
The BBC seem to have hinted at the new Time Lord on Doctor Who
Missy returns to Doctor Who
I'll be coming out of this soon. Right, another coat
Then again the video may just be a big red herring to send the rumour mill into overdrive and cause further speculation over who will play the 13th incarnation of the Time Lord.
After all, it would be a bit odd to have a villain switching sides and becoming the main hero. But who knows with this timey wimey show?
It was confirmed back in October last year that Missy would be returning to Doctor Who for season 10 to cause more trouble for the Time Lord and wreak havoc on the universe.
She told Music.com: "I can officially say that I will be starting back on Doctor Who soon."
Michelle Gomez as Missy on the Doctor Who set
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The video featuring Missy comes after Peter, 58, told Jo Whiley on BBC Radio 2 that he was leaving the TARDIS in the 2017 Doctor Who Christmas special.
His exit will coincide with the departure of Doctor Who show runner Steven Moffat, who will be handing over the reigns of the BBC hit to Broadchurch creator Chris Chibnall.
Writer Chris is no stranger to the world of Doctor Who and has previously written episode of the cult sci-fi classic as well as working on the spin-off series Torchwood.
Doctor Who will air on BBC One later this year.