There are at least a couple-dozen Greek Philosophers (in my estimation) whose ideas were both popular and comprehensive enough that they were taught throughout antiquity. Pythagoras, Democritus, Plato, Aristotle and many others each crafted a (mostly) internally-consistent view of at least two of the five main branches of ancient philosophy (Metaphysics, Epistemology, Logic, Ethics, Aesthetics) and were taught as 'schools' of thought as part of upper-class education until the last few centuries.
But we've dug up quite a bit of Greek artifacts and writings since the age of the Renaissance Man, and with the internet at our fingertips, even the most esoteric philosopher can be found with enough research.
So my question is: Are there any ancient Greek philosophers with fleshed-out viewpoints in at least two of the five main branches of ancient philosophy that were either mostly-ignored or recently (last 200 years) discovered?