I was running through the Sylvari quests when I happened across this Sylvari NPC Tiachren, whose voice sound strikingly familiar. Not being able to capture it myself, I did find a youtube video with him in it:
I know for a fact I’ve heard this voice before, but I can’t quite get it down. I searched the whole credited cast of GW2 on IMDB and unfortunately the character Tiachren is not listed. The only clue I have is that it does sound like it would be someone from SWTOR, but that still leaves a lot of options.