Name: Dean Winchester
Alias:: Too many to list, though he won't object to being called Batman, Awesome, The Man...you decide. Often, he is referred to as Dick, mostly by his brother, Sammy.
Age: 26
Height: 6'1"
Likes: Frisky women, alcohol (preferably beer), his 1967 Impala, classic rock, vibrating beds, prank wars, his father's old leather jacket, Oprah, Busty Asian Beauties, Dr. Sexy MD., Food (Listed in no particular order)
Dislikes: All things evil, monsters, dicks.
Fears: Being unable to protect his family, Sammy. Flying.
Weakness: Dean has one weakness- His family. Evil will do anything to use that against him. He also has little to no self worth. He believes his life doesn't mean anything so he is often quick to sacrifice himself for the greater good.
Family: Sam Winchester (Brother), John Winchester (Father), Mary Winchester (deceased mother), Samuel Campbell (maternal grandfather), Deanna Campbell (deceased maternal grandmother), Adam Milligan (paternal half-brother, unknown to Dean and Sam).
Skills/Abilities: An expert marksman, Dean, seldom misses his intended target and can efficiently put down anything vulnerable to bullets. He is adept with martial arts and knife fighting, as well as being highly resourceful. He frequently utilizes improvised weapons and explosive devices. Dean also possesses extensive knowledge of the supernatural and mythology (Although Sam's knowledge of 'on-the-spot' facts is generally superior, such as Sam being able to perform an exorcism on his own with no access to their usual books where Dean often needs a reference. He is well-versed in how police, fire departments and various government agencies (FBI, CDC) typically operate and conduct investigations, and knows how to both impersonate and evade them effectively. An accomplished mechanic, he maintains his Impala in tip-top condition and has maintained an intimate knowledge of automobiles and engines since childhood. Dean is a virtuoso of escape, evasion and silent movement, when the situation requires subtlety and stealth. Lastly, he is skillful in: lock picking, breaking into security systems (not so much computers, which often falls to Sam), and carjacking. The trunk of the Impala contains numerous weapons which have been needed in the past, notable examples include sheath knives and, perhaps the most alarming, an DefTech 37mm grenade launcher.
Personality: He is sometimes impulsive and doesn't think things all the way through. Generally, he is sarcastic and puts on a air of narcissism, though this is a ploy. Being a hunter sucks, this is the plain and simple truth. He is also a been known to be a low grade womanizer.
History: Dean Winchester was born on January 24, 1979 to John and Mary Winchester in Lawrence, Kansas. He is the couple's first child, four years older than his younger brother Sam. He is named after his maternal grandmother, Deanna Campbell. When he was only four years old on November 2, 1983, his mother Mary was killed in Sam's nursery by the demon Azazel. Infant Sam is saved by the ensuing fire when his father takes him out of his crib and gives him to Dean, who then carries him outside while their father unsuccessfully tries to rescue their mother. After that night Dean has felt responsible for Sam, and was always given the job to take care of him while they were growing up. Dean's father John raised him and Sam as hunters of the supernatural. During Dean's childhood John would be away "hunting" a week or two at a time. John told Dean that his little brother's life was in his hands, and the term "Watch out for Sammy" became his life.
Resources:
http://en.wikipedia.org/wiki/Dean_Winchester
http://www.imdb.com/character/ch0018166/bio