Visitor alphabet   

The Visitor alphabet appears in the 1983 sci-fi TV mini-series V
created by Kenneth Johnson. The alphabet is used to write the language of
the aliens in the series, who are known as Visitors. Different versions
of the alphabet are used in different series of the show.

Visitor alphabet (1984 version)

Visitor alphabet (2009 version)

Links

Information about the Visitors and the series V (includes free fonts)
http://www.thevisitors.info
http://en.wikipedia.org/wiki/V_(TV_series)
http://marhawkman.deviantart.com/art/Visitor-Language-translator-161336835
http://v.wikia.com/wiki/Visitor_Language