Re: OOC
Well, Paran is calm...
... as a disadvantage, he sometimes gets controlled or carried away by the Fiend entity with whom he has made a pact.
Afterwards he feels miserable and tries to make up for it.
I need to work with the DM how he/she wants to deal with flaws, and how we can make this into a flaw without being too disruptive within a "good" group.
As for backgrounds, I don't know who might want to tie his/hers to mine. Paran comes from a wealthy family fallen onto disgrace.. to top it up he started showing signs of having some weird blood in him that marked him as a tiefling so feeling angry and betrayed, some other warlock saw the opportunity of using him to seal a pact with a fiend. He got into it a bit unknowingly but with the rage, and rebellious nature that he had, it was some time until he noticed the monster he was actually turning into.
He has been fleeing from that life, but the pact still holds, and the Fiend has his dues.
So... in the fleeing part is where I guess it makes most sense. Paran can be from almost anywhere geographically so in that sense he can adapt to anyone's background. His is criminal.
By the way, I went for Fiend for I think it fits his background... the other option I was playing with was the Old Ones... which brings the telepathy into play... I quite like this option too, if we imagine some kind of entity Cthulhu like or something. Its a bit less of punch power, but its not that bad and it may open roleplaying options...
I am not sure what kind of module we are going to play though if its a lot of combat then Fiend might be better....