There's also this Trooper's companion ... Elara Dorne.
And there's an officer called "Doren", I think, both on Dromund Kaas and perhaps on Balmorra as well (but I'm not sure about that anymore).
"Dorn", by the way, means "thorn" in German language.
The agent thingy that makes you choose your adv. Class is Dorne's father...