Dyrk aka "Dan" is a member of the Killraven Gang.  He was a frequent companion and mentor to Phen in his time with them.  Using the alias "Dan", Dyrk showed up at the party's flat when their attempted burglary of a Vladaam house went badly (it turns out the house was being used by Shilukar, who nearly killed them with a Fireball).

Dyrk is a young man in his twenties with brown-blonde hair, with the distinguishing characteristic of having two different colored eyes.