The Hooloovoo resemble a super-intelligent shade of the colour blue. One was seen in a prism for Zaphod Beeblebrox's address upon stealing the Heart of Gold. On certain special occasions, such as the aforementioned Presidential event, they will be refracted into a free-standing prism.
Their homeworld is a collection of asteroids in one of the far flung arms of the galaxy. They are able to "read" material like books by occupying prisms, including a special edition of the The Guide.
The Hooloovoo demonstrate their dissatisfaction with the Universe by holding their breath until they turn a deep purple.
The Hooloovoo appeared in:
- The Douglas Adams book The Hitchhiker's Guide to the Galaxy.
- Advertisement for the Secondary Phase radio play.
- The Eoin Colfer book And Another Thing....
- It is ambiguous whether the Hooloovoo are superintelligent compared to other galactic inhabitants, or only by comparison to other shades of blue, which they resemble.
In Season 3 of King of the Nerds the blue team named themselves "House Hooloovoo".
There is a software company Hooloovoo from Belgrade, Serbia, uses this and many references from the book to attract software developers with a similar sense of humour.
The name of a debut album by a Rhode Island band "Young Neil and the Vipers" released in 1990.
- ↑ 1.0 1.1 Hitchhiker's Guide To The Galaxy Radio Times Trailer 1980 - Rare!
- ↑ Guide Note found in And Another Thing...