Green overseer

The green overseer is a rare variation of the overseers. It has a distinctive deep emerald green that cannot be mistaken with the common blue or yellow overseers. Because of its incredibly low spawn rate, most players will never encounter the green overseer if they don't look for it for many cycles. Bringing the green overseer's eye to moon heeds no special dialogue, since it is identical to yellow's and blue's eye. It has the same behaviour as the Blue Overseer.

Conditions of spawn
The green overseer can only be found in subterranean with a 1% spawn chance

Trivia
It is never directly said to what iterator the green overseer belongs to, but it is implied to be No Significant Harrasment's, because of the similarly colored neuron and pearl the hunter starts with as well as NSH likely being the closest iterator to the twelve regions aside from Five Pebbles and Looks to the Moon.