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The Human Computer 

The Seaview is selected to be converted to a totally automatic ship controlled by a central computer. The mission goes well till Capt. Crane, the only person aboard the sub, realizes he may not be as alone as he thought.


James Goldstone


Irwin Allen (created by), Robert Hamner

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Episode complete credited cast:
Richard Basehart ... Admiral Nelson
David Hedison ... Captain Crane
Simon Scott Simon Scott ... Reston
Harry Millard Harry Millard ... The Man
Ted de Corsia ... Foreign General
Herbert Lytton ... First Admiral
Walter Sande ... Second Admiral
Del Monroe Del Monroe ... Kowalski
Robert Dowdell ... Chip Morton (as Bob Dowdell)


The Seaview is selected to be converted to a totally automatic ship controlled by a central computer. The mission goes well till Capt. Crane, the only person aboard the sub, realizes he may not be as alone as he thought.

Plot Summary | Add Synopsis


Adventure | Sci-Fi





Release Date:

15 February 1965 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:

Mono (RCA Sound Recording)

Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


Crane says he stays on-board because under maritime law an abandoned vessel can be claimed by anyone.This is not necessarily correct and there have been law changes in the past 20-odd years as improved diving technology makes locating and retrieving items possible when it was not before;however, principles of maritime salvage law goes back to medieval times.It also depends on whether the Seaview is considered a US military, government owned, or private vessel which is never made clear in the series.First if the Seaview is considered a US Navy military vessel then sovereign immunity would apply which would prevent any salvageor from making a claim and particularly if the vessel was engaged in military actions.If government owned ship, then it would still not be eligible for claim because a government is not considered to ever abandon a vessel unless explicitly done.If the vessel is considered privately owned,the laws are most complicated including if the vessel is sunk or under-way where it might be considered a navigation hazard.For simplicity if the Seaview was simply dead in the water and could be considered a navigation hazard, then someone could take action to remove the hazard.Under law a successful salvor is NOT entitled to just keep the salved vessel, under any circumstances, but is entitled to a generous award.The award is based upon several factors including what actual actions were taken to remove the hazard or recover the vessel.Under law the maximum award is the value of the vessel and its cargo.This means that the salvor could be paid monetarily versus keeping the vessel.The confusion over a salvor being able to keep the vessel is based upon that the ship's owner or insurance carrier find it more cost-effective to simply turn over the ship. See more »


Visible wire on dangling fire extinguisher. See more »


Captain Crane: If you're trying to kill me, why are you running? Pick up a mic and answer me.
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User Reviews

Four Out Of Ten Drama
14 November 2016 | by StuOzSee all my reviews

Crane is alone on the Seaview...or is he?

Firstly, I am aware some of my reviews for the second half of Voyage season one have been rather negative...and The Human Computer review is like that. It just looks like all concerned with the series sort of ran out of steam about half way into the season. But having said this, we still have some classics to come like The Enemies and The Creature. Also, the series as a whole improves in season two.

The Human Computer is more about running out of budget than steam. Official word has it that the show ran out of cash so they dished out a story with Crane running around an empty Seaview for 75% of the hour.

But obviously enough people liked what they saw so this alone-but not-alone-on-Seaview theme was re-used in several other episodes. Altleast the later versions sometimes had better music playing over them (like in season four's Nightmare).

The Human Computer has just one pleasing element to it: Batcave/Jupiter 2 computer banks splashed all over the Seaview control room. We never see this again. This alone gives this episode four out of ten.

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