'Doctor Who: Spyfall' Part 2 preview: Could the Master's insanity-fueling drumbeat return?

We could learn more about Sacha Dhawan's Master's backstory in the next episode
Sacha Dhawan and John Simm in 'Doctor Who' (BBC)
Sacha Dhawan and John Simm in 'Doctor Who' (BBC)

Though the Master has been part of the Whoniverse since its Classic era in the 20th Century, what turned the Master into the Doctor's "best enemy" was not revealed until 'Doctor Who' returned with Russel T Davies as the showrunner.

In the Episode 12 of Season 3 of NuWho, it was revealed that "the drumming" was a condition that afflicted the Master since his time at the Time Lord Academy. At age eight, the Master stood before the Untempered Schism, looking into the Time Vortex. The Tenth Doctor later said: "Some would be inspired, some would run away and some would go mad." The Master went mad.

For the Master, this manifested in the form of constant drumming that he heard, which worsened with each day. The drumming consisted of four beats and eager 'Doctor Who' fans would notice that it is the same four beats heard in the theme song for 'Doctor Who'. The drumming turned the Master into “one of the most evil and corrupt beings this Time Lord race has ever produced” according to the episode ‘The Five Doctors'.

In the preview for 'Spyfall: Part 2', we see Sacha Dhawan's Master continuing with his plan — which we are not clear of yet except that he years for chaos. In the trailer, we see someone key in the same four beats into a telegraph machine.

We see it twice, and the signature beats of the drumming are hard to miss. It is likely that Sacha Dhawan's Master is an incarnation between John Simm's and Michelle Gomez's and considering that the Doctor met O before "when she was a man", this Master could be from a different timeline — or as Part 1 of 'Spyfall' seems to suggest, a different universe.

So what is the Master's end goal here? It cannot be just to kill the Doctor. She's still alive as we see in the final moments of the Season 12 premiere. That the Doctor will save the day, we are sure, but it could be a long way ahead.

'Doctor Who: Spyfall Part 2' will air on BBC America on January 5th on BBC America.

GET THE BIGGEST ENTERTAINMENT STORIES
STRAIGHT TO YOUR INBOX.

MORE STORIES

Malik has no idea Hondo knows his secret, and Adain Bradley says their story is far from over.
2026-10-17T20:45:16.000Z
Jo’s resignation raises questions about her future as ‘Grey’s Anatomy’ begins a new era in Season 23
2026-10-17T18:23:30.000Z
‘Tulsa King’ Season 4, starring Sylvester Stallone, streams every Friday on Paramount+
2026-10-17T10:36:40.000Z
Pavi and her long-lost twin Nisha hunt for their origins as the Havens cheer the last Avatar’s death
2026-10-17T08:37:00.000Z
Season 2 of the HBO Stephen King prequel jumps back to 1935 and a gang of bank robbers
2026-10-17T06:52:24.000Z
‘Fire Country’ season 5 episode 2 reveals Jake’s fate after the shooting as the team uncovers the attacker’s motive
2026-10-17T06:41:28.000Z
Wes ends ‘Sheriff Country’ Season 2 Episode 2 in the hands of Stoyanovs after exposing bakery bug
2026-10-17T05:35:47.000Z
Chad Lowe is the executive producer on ‘9-1-1: Nashville’ and has also directed many episodes
2026-10-17T05:07:28.000Z
Issa López returns as showrunner for a Jamaica Bay story with ties to ’Night Country’
2026-10-17T03:12:59.000Z
Oklahoma’s governor and Dwight’s love interest board a private jet in the first episode of Season 4
2026-10-16T09:30:07.000Z