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Arthur learns about Deep Thought, a computer built millions of years ago to discover the "Ultimate Answer", after 7 and a half million years, it had the answer: 42. So to decipher this answer, the builders of the computer commissioned a new, even larger computer to find the "Ultimate Question"; the Earth. It is discovered that Trillian's mice (the smartest creatures on Earth) were searching for the Ultimate Question, and they believe they can find the answer by first extracting Arthur's brain...

Episode Info  

Episode number: 1x4
Production Number: 104
Airdate: Monday January 26th, 1981

Director: Alan Bell
Writer: Douglas Adams

Guest Stars
David TateDavid Tate
voiced PA (uncredited), Benjy Mouse
Richard VernonRichard Vernon
As Slartibartfast
Stephen MooreStephen Moore
voiced Frankie Mouse
Antony CarrickAntony Carrick
As Loon-Quall (uncredited), Lunkwill
Charles McKeownCharles McKeown
As Vroomfondel
David Leland (1)David Leland (1)
As Majikthise
Marc Smith (1)Marc Smith (1)
As Bang Bang
Timothy Davies (1)Timothy Davies (1)
As Phougg (uncredited), Fook
Valentine DyallValentine Dyall
voiced Deep Thought

Eddie SommerEddie Sommer
As Alien Robot
Eric FrenchEric French
As G'Gugvunt Leader
James MuirJames Muir
As Vl'Hurg Leader
Richard ReidRichard Reid
As Guard
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