Name: Spike/William the Bloody
Date of Birth: 1880 (Sired by Drusilla)
Place of Birth: London, England
A cocky vamp from 19th century England, Spike got his former (pre-bloodsucker) name, William the Bloody, because of his bloody awful poetry. However, in 1880, the sensitive lyricist was sired by his immortal lover Drusilla. Spike would impale his victims on railroad spikes, hence his nickname.
Spike has killed two Slayers. The first of these was a Slayer during the Boxer Rebellion and the second was a punker kid in New York-whose trench coat has become synonymous with Spikes predatory attitude.
An old friend of Angel's, we see him arrive in Sunnydale with his love Drusilla. Spike plays havoc on the town, firstly by killing The Anointed One and then by setting his sights on destroying Buffy.
One of the most interesting members of Sunnydale's night stalkers, Spike found himself off and on with Drusilla who finally ended up leaving our favorite baddie the first time for the Chaos Demon and the second time for the Fungus Demon. According to Dru, the Victorian poet turned psychotic Slayer killer just wasn't evil enough for her.
A traveler, the killer returned to Sunnydale one year trying to find the Gem of Amarra that would make him invincible. Eventually, Spike began dating former Sunnydale High snob turned fang face, Harmony. That didn't work out and Spike has taken a vested interest in our heroine Buffy.
To his chagrin however, the Initiative implanted a chip in Spike's head to make him harmless to humans. More recently, Buffy told Spike that she found him disgusting, saying, "The only chance you had with me was when I was unconscious." During the final battle with Glory that lead to the Buffster's death, the inherently vicious Spike kept his word to protect Dawn.
After Buffy's return from the dead, they started a sexual relationship. After Buffy ended the relationship Spike vowed to become the man he once was & left town to achieve this.
Now that Spike is back with his newly acquired soul, there is a lot of mystery surrounding him. Only time will tell the fate of Spike and Buffy.