Master Steadfast Oak
From Exalted - Unofficial Wiki
Steadfast Oak seems to be an older man. He is balding but has bushy white hair around the sides and back of his head. He also has a beard, also with bushy white hair.
He maintains a small park in Nexus, with a shrine in the center devoted to several local gods. The locals trust him as an priest and intermediary to the local gods and spirits.
Master Oak seems to have a fatherly attitude towards both Ravhat and Tris.