Loved this topic, finally something interesting here!
1 - Yea, my character is based on myself, appearence, clothing, personality, everything. I just can't explain why.
2 - My character's parents are both dead, but he does still have family in San Paro, a cousin, Velmett (my other character, and yes, i regret choosing this name).
3 - My character was born in San Paro, but both of his parents are Brazilian.
I do have a backstory, but is writen in Pt-Br, so i'm not even sure if there's even any logic to post it here.