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.
Information about the Visitors and the series V (includes free fonts)
Ancients' Alphabet, Ath, Atlantean, Aurek-Besh, Cirth, Daedric, D'ni, Dragon Runes, Futurama Alien Alphabet, Gargish, Gnommish, Golic Vulcan, Halo Covenant alphabet, Hylian syllabary (Old), Hylian syllabary (Modern), Hylian alphabet, Klingon, Kryptonian, Marain, Matoran, Romulan, Sarati, Standard Galactic Alphabet, Tsolyáni (Tékumel), Tenctonese, Tengwar, Utopian, Visitor, Zentlardy