Ranger Eoss

Ranger Eoss is a blood elf hunter trainer located in the Sunreaver's Sanctuary (appearing as an orc in Windrunner's Sanctuary) in Dalaran.

Quotes
We have little to discuss,. Perhaps you should seek other, more like-minded individuals.
 * Non-hunter gossip

Speculation
Given the fact that the NPC reuses the model of a previously-used model, it is possible that Blizzard originally planned to use those characters instead of race-changing a blood elf into an orc with no explanation.