Orion

Orion is a tiefling bard, and part of Snow's group of friends/operatives. He seems to be an archetypical mischievous flirt. It was implied that he was originally from Grindwall and came from a lower class background.  
The party encountered Orion during their final hours of their Undark mission for Mysa'aor, shortly before exiting the underdark via fiend's mirror.