Doctor Who (2005– )
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The Krillitanes - aliens with a mix-and-match physiology - are trying to crack the 'God-Maker', a paradigm to give them ultimate power. They are using children as a computer, and only the Doctor and Rose, re-united with Sarah Jane Smith and K9 can prevent them from becoming masters of time and space.


James Hawes


Toby Whithouse, Bob Baker (character: "K9") | 1 more credit »

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Episode complete credited cast:
David Tennant ... The Doctor
Billie Piper ... Rose Tyler
Noel Clarke ... Mickey Smith
Anthony Head ... Mr. Finch
Elisabeth Sladen ... Sarah Jane Smith
Rod Arthur Rod Arthur ... Mr. Parsons
Eugene Washington Eugene Washington ... Mr. Wagner
Heather Cameron-McLintock Heather Cameron-McLintock ... Nina (as Heather Cameron)
Joe Pickley Joe Pickley ... Kenny
Ben Smith Ben Smith ... Luke (as Benjamin Smith)
Clem Tibber Clem Tibber ... Milo
Lucinda Dryzek ... Melissa
Caroline Berry Caroline Berry ... Dinner Lady
John Leeson ... K-9 (voice)


The Doctor, Rose and Mickey goes to investigate Deffry Vale High School, where the students have become super-intelligent and teachers aren't what they seem and lunch times are really peculiar. When the Doctor learns the teachers and the headmaster Lucas Finch are sinister aliens, reuniting with investigative journalist Sarah Jane Smith and mobile computer K-9 mark 3, The Doctor set out to uncover Finch and the teacher's evil intentions and foil their evil scheme. Written by Daniel Williamson

Plot Summary | Add Synopsis


TV-PG | See all certifications »

Parents Guide:

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Release Date:

13 October 2006 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


| (50 episodes)

Sound Mix:

Dolby Digital (Dolby 5.1)


See full technical specs »

Did You Know?


The script included dialogue that Sarah Jane Smith was a recovering Alcoholic, but Elisabeth Sladen suggested the lines be removed. See more »


Sarah Jane Smith tells the Doctor she thought he was dead. Later she tells him she thought he was involved with the spaceship last Christmas. See more »


[first lines]
Mr. Finch: [walking the halls while making fingerings with his left hand as if playing a three-keyed brass instrument, then sings softly] Bom bom bom bom / Da-bom bom bom.
Mr. Finch: [He walks just past Nina waiting in a chair by his Headmaster office, stops, and turns taking notice of her] What do you want?
Nina: The nurse sent me, sir. I was in English and I got a headache.
Mr. Finch: Then don't bother me, go home.
Nina: I can't.
Mr. Finch: Why, is your mother at work?
Nina: I live in Ambrose Hall. The children's home.
Mr. Finch: [conciliatory] No ...
See more »


Referenced in Doctor Who: Under the Lake (2015) See more »


Doctor Who Theme
Written by Ron Grainer
Arranged by Murray Gold
Performed by BBC National Orchestra of Wales
See more »

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User Reviews

Closure for Sarah Jane
30 April 2006 | by fdcoxSee all my reviews

I was worried about this episode. Sarah Jane Smith has always been my favorite Dr. Who assistant and didn't want the new producers to trample on my feelings about the character (the way 'Star Trek Voyager' did when they brought back the character of Kes for a one-off episode). I needn't have been concerned though, it was wonderful. That's the thing about this new Dr. Who incarnation, it's so much more emotional than the old version. Perhaps it's not surprising. The new producers grew up with the show like the rest of us. We're all older and we want something with a bit more depth than just the same old face-off between the Doctor and the Daleks, the Cybermen etc. (although we want that too). As a result, Elizabeth Sladen got to act in a way that she never did in the old series (and didn't she look GREAT). I loved that little scene in the café where Sarah Jane talked about how much traveling with the Doctor had meant to her and what it had been like to give it all up. I also loved the final scene where she got to go inside the Tardis again, and the moment when she thanked the Doctor for all her experiences with him. She might have been speaking for all of us.

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