Carpocrates - Wikipedia
   The founder of an early Gnostic sect from the first half of the second century.
   http://en.wikipedia.org/wiki/Carpocrates

Cerinthus - Wikipedia
   The leader of a late first-century or early 2nd century sect, an offshoot of the Ebionites yet similar to Gnosticism.
   http://en.wikipedia.org/wiki/Cerinthus

Marcion of Sinope - Wikipedia
   A major 2nd century Early Christian theologian, founder of what would later be called Marcionism.
   http://en.wikipedia.org/wiki/Marcion

Valentinus - Wikipedia
   The best known and for a time most successful Early Christian Gnostic theologian.
   http://en.wikipedia.org/wiki/Valentinius