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Dr Fan wrote at 2006-07-30 13:52:20
Right in a Tom Baker Episode (and I have watched every episode of Doctor Who at somepoint in my life (I'm stuck on Colin Baker at the moment and have little will to carry on, on re-watching them) there was a character he bumped into (The actor may have been villa from B7 or look very simelar) who knew him from the "Time lord acadamy" as a student class of ""... who knew him and called him by name... now phonetically it sounded like "feetus Sigma", he then later refers to him as "old feet"...  and Tom Baker asks him never to tell anyone!!

Rob wrote at 2007-06-25 07:20:48

 I saw an episode once when he came across and old friend (another time lord) from  his Gallifrey collegiate days, this friend addressed him as Peter, I can't recall the last name. I hope this has been of some help.

Cyberman wrote at 2007-07-01 04:25:50
I have found a similar question in Dr who monthly issue 79 in the matix database section subheading what is in a name. stating dr whos name is a mathmatical formula. I have his name with me ATM but I for the love of Gallifrey can't find the keys to recreate this symbol in a forum

Chris wrote at 2007-12-28 21:48:04
In 'The Armageddon Factor', the Doctor runs into Drax, a guy he went to the Academy with. After filling each other in on what they've been doing over the years, Drax calls the Doctor "Pete". The Doctor, looking pretty annoyed, corrects him.

Dooter wrote at 2008-04-11 23:19:39
I'm pretty sure his name is just "The Doctor".

In a recent episode, they described how Time Lords go through a rite of passage where they stare into some sort of abyss that reveals who they really are at their being's core. When revealed to be a healer/fixer who wanted to do no harm, he took on the name of "The Doctor". The Master was revealed to be a power-mad domination-seeker, thus the name "The Master" to reflect his own particular deepest desires.

It's just that humans expect there to be a surname after the title "Doctor" that this question keeps popping up. His name is just "The Doctor".

SRW wrote at 2008-05-25 08:56:01
in the key to time's final episode tom baker meets up with a time lord he went to school with and he calls the doctor feat sigma, or somrething like that

LordThree wrote at 2008-06-08 05:43:19
Also, In episode titled "The Armageddon Factor" The time lord handy-man type guy he meets along the way- mentions his name. He said "Feet Sigma" or "Feat Sigma". One or the other is what I heard. This was the Tom Baker years while him and Romona II are searching for the pieces of the key to time (or something).

Only problem is... the newest episode mentions his real name but doesn't say it (Season 4 episode 9) so I hope to god that 'ol whats-his-face sees fit to actually research and find his name.

Doctor who freak wrote at 2008-07-01 16:40:03
incorrect. in the last episode the doctor whispers his name to donna then when donna asked what he said he said nothin. my guess is that the doctor can only reveal his true name when he is in love because his future lover, the proffessor in the library knew his real name and whispered it to him also.

it's me wrote at 2008-09-19 10:40:41
In one of the episodes of the \"Keys to time\" series, a former school chum calls Tom Baker \"Theta Sigma.\" The Doctor sheepishly tries to silence him while looking back & forth at the camera & his chum. Classic Tom Baker style.

His real name is given in \"Unfinished Business\" series of online Doctor #9. It is:

Chrístõdavõreendiamondhærtmallõupdracœfiredelúnmiancuimhne de Lœngbærrow -

- Chrístõ to his friends.

But he also has many other names.  

Peeks wrote at 2009-04-12 14:03:31
I vaguely remember an episode when he gives his name , which sounded unpronounceable .

Someone answered Dr Who and he replied that will do.

Or did I just dream that up

Sue wrote at 2009-08-25 00:06:58
In the book from the episode where he runs into Drax, his name is listed at Theta Sigma, or "Theet."

PHH wrote at 2009-12-02 19:47:55
I have read that his name is "∂³∑x²". This is from either the Technical Manual, Monsters, or The Galifrey Chronicals. Credit is given to

One and only female Doctor wrote at 2011-01-12 02:09:31
Dooter it is actually the time vortex they have to look in to. And yes Doctor who freak River Song does wisper his name but she might not be his loved one, as the series goes on you find out all kinds of things she does like kills a very good man.

The Only Female Doctor xx

elle wrote at 2013-01-23 05:35:05
He's saying "Thete" and "Theta Sigma" not "feet" or "feeta".  It's just that the actor is British and has this accent where "th" sounds like "f".  

Haven't you ever seen Mick Jagger yelling at his guitarist "Keeeefffff!!!!"  It's just the way some British people talk.

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Mark Campbell


I am a freelance writer and huge "Doctor Who" fan. I have seen pretty much every episode that exists, and am familiar with the plots and production details of the series as a whole. I possess every issue of "Doctor Who Magazine", every Target novelization, and a range of the best reference works. I am confident that I should be able to answer any specific queries quickly and accurately. I have written a book called "Pocket Essentials: Doctor Who" (ISBN 1903047196, £2.99), out now. I also have a website called "Skonnos", which features interviews, articles and reviews. The only areas I don`t cover are fan-produced spin-offs and new book adventures.


I am a freelance writer and have written articles on "Doctor Who" for "Midweek" magazine, "The Bookseller" and "The Independent" newspaper. I have a website called "Skonnos" ( which contains many interviews I have conducted with the production team and actors, as well as reviews and articles. I have also written a reference book for Pocket Essentials, called, unsurprisingly, "The Pocket Essential Doctor Who" (£3.99, ISBN 1903047196).

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