Here's the Who's Who of this 'verse

Dean Winchester

Full Name : Dean Winchester
Date of Birth : 24th January 1979
Place of Birth : Lawrence, Kansas
Height : 6'2"
Hair : Brown
Eyes : Green

Eldeest son of Mary and John Winchester. He has lived his life protecting his brother Sam, starting at the age of four when he carried his six-month old baby brother out of their burning home. (Rest of bio to be posted by writer)

 

Sam Winchester

Full Name : Samuel "Sam/Sammy" Winchester
Date of Birth : 2nd May 1983
Place of Birth : Lawrence, Kansas
Height : 6'6"
Hair : Brown
Eyes : Hazel

Youngest son of Mary and John Winchester. He tried having a life at college but his girlfriend was killed by the same demon that had killed Mary Winchester. He's rejoined his brother and has traveled a dark path the yellow-eyed demon started when he was an infant. It's a rough path back from that but he's trying, and he has his brother and now others to help.

 

Krista Morgan

Full Name : Krista Michelle Morgan
Date of Birth : January 1981
Place of Birth : Lawrence, Kansas
Height : 5'8"
Hair : Brown;long
Eyes : Blue

Youngest daughter of Samantha and David Morgan, she had a relatively normal childhood growing up, until the day her older brother and she lost their parents due to an automobile crash.  They then went to go live with an Uncle that had, up to a year before the accident, hadn't spoken to his brother, the siblings' father. Neither would learn the real reason why until later, but had been lead to believe it was just two brothers that had lost touch and had a falling out.  What that reason was - and Damon, Krista's brother learned first - was because their Uncle was a Hunter, and their father refused to have anything to do with that life.  Krista went on to become a doctor and has surgical skills but had always focused on working the ER.  It was during one of those shifts that she met Dean Winchester, after he had saved a boy from being shot and even taking the bullet meant for him.  Trusting her instinct that night, she had helped Dean not only get patched up but to avoid the police that were around trying to figure out what had happened.  Of course Dean slipped out later that night and she hadn't seen him since... until she caught him and his brother posing as FBI agents to look into the same rash of deaths she was looking into.  That was when things got hairy... (more to be posted by writer)

 

Damon Morgan

Full Name : Damon Thomas Morgan
Date of Birth : 2nd May 1978
Place of Birth : Lawrence, Kansas
Height : 6'6"
Hair : Brown
Eyes : Brown

Look at my sister's bio, get the gist but the difference is I knew about hunting and had my Uncle teach me.  Until recently Krista didn't know about this life.  I wanted to keep her from it; protected.  It's only because I know she'll have three hunters covering her back now that I'm almost okay with her learing the ropes and getting into this life.  Okay that's a lie I'm not okay with it but I'm her big brother.  I don't think I'm ever going to be okay with it but it's what she's decided to do so I'm going to do my damndest to make sure she survives it and grows old even if I have to look at the Winchesters mugs while doing it... (more to be posted by writer)

 

Bobby Singer

Full Name : Bobby Stephen Singer
Date of Birth : unknown
Place of Residence : North Dakota
Height : 6'1"
Hair : Peppered Brown
Eyes : Brown

Friend of John he serves as an extended family member to them. He has ways of helping the brothers and does so while helping to keep the brothers' focus on what's important: Family. He stays mostly in a central location but does travel.  His day job is as a salvage (more to be posted by writer)