Prostetnic Vogon Jeltz is a member of the
Galactic Hyperspace Planning Council
and a terrible poet (see Vogon poetry). He was
in charge of the
Vogon Constructor Fleet
that was sent to demolish Earth, as it was in the way
of a new hyperspatial express route through
the solar system.
He is not a pleasant sight, not even for
other Vogons. He has a small piggy forehead,
over which a highly domed nose rises. He has
thick, rubbery, dark green skin, a
bad temper (which seems to get worse
after having demolished populated planets),
and he has a thing or two against
hitch hikers.
He appears in Douglas Adams' five-volume
science fiction trilogy, The Hitch-Hiker's Guide to the Galaxy.