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