Character Biographies
The Witches:Winifred Sanderson - Winifred is the loud, red-headed, buck toothed leader of the group. The only intelligent member of the trio, she has to put up with her two idiot sisters. She has the power to stun her victims from a distance by firing bolts of lightning-like energy from her fingertips, and is the primary spell-caster of the group. It is her book that the children steal. Winifred, or Winnie as she tends to be called, has a tendency to be rather melodramatic. She is also very sensitive about being called "ugly." She rides a regular house corn broom in the climax of the film, forcing her sisters to fly by other means. She admits shortly before her second death that hell was actually 'quite lovely'. Her costume is green-themed, with black spikes on the toe end of her black shoes.
Sarah Sanderson - The most beautiful of the trio, Sarah is boy-crazy, extremely ditsy, and also unbearably stupid. Her primary power is a siren song: granting her the ability to control children's minds with her voice. She also possesses uncharacteristically-refined knowledge of spellcasting in general, as she has no problem assisting Winifred in spells of perpetual-dance and transmogrification. Sarah rides a mop in the climax of the film and dramatically bids farewell to Winifred before exploding. Her dresses are purple themed and more revealing than the other sisters.
Mary Sanderson - The "fat" sister of the trio who, while not nearly as ditsy as Sarah, is still rather dim. She has various canine tendencies, including barking when she is excited and having the power to sniff out the presence of any children near her. Mary acts as the voice of reason and has to calm down Winifred on several occasions. She also does whatever she can to be in Winnie's favor, including helping her make a potion or compliment her. Mary rides a vacuum cleaner in the climax of the film, known for yelling "broom ho!" to invoke a flight-spell onto a vessel. As she sees the sun come up, she cheerfully says 'Bye-bye' before exploding into dust. Her garb is red themed, and she sports a very interesting hairstyle.
The Children:
Max Dennison - Max is the typical city boy teenager who is upset at having to move to the smaller town of Salem. After a run-in with the two bullies Jay and Ice, he exhibits his behavior in a mixture of anger and frustration, directed toward his sister Dani. As their adventure begins he loses his previous skepticism and attains a leader-like role in order to protect Dani and attempt to attract Allison's attentions. He offers to sacrifice himself for the life of his sister, which Binx had not had the chance to do when he was human proving he cares more for Dani's life than his own. As his Halloween costume, Max grudgingly dressed in regular clothes with a hat and sunglasses saying he was a rap singer, but Dani clarified to a group of bullies that he was a Little Leaguer instead.
Allison - Allison is the grounding force of the children, she tends to remain calm under stressful situations and often comes up with ideas on facing various situations against the sisters. She's cool, collected and the most resourceful (Even using a circle of salt to prevent the witches from attacking her as she learned from the spellbook) She is Max's love interest, and despite his original skepticism which caused her to turn down his advances, comes to like Max a lot. When met at her party, Allison was originally dressed in a Victorian gown. She changed clothes for the rest of the film, however.
Dani Dennison - Dani is the youngest of the children, and also plays as the most vulnerable. She is the younger sister of Max and constantly needs the protection of her big brother. She tends to whine and screams when she doesn't get her way. She matures rapidly throughout the film, becoming more independent, but still falls prey to Winifred who kidnaps her. Dani is friendly with Allison, but is closer to Binx to whom she has developed a pet bond to, and Max her big brother whom she loves tremendously. She was dressed as a witch for Halloween which initially threw the witches off when they encountered her.
Thackery Binx aka Binx - Thackery was born in the late 1600's and in 1693 he chased his sister Emily into the woods as she was being drawn by Sarah Sanderson to the witches' home. He was too late to save her when they drew the life force out of Emily and the witches made themselves young ("Well... youngER"). As punishment for attempting to disrupt their spells, Winifred decided to transform him into a cat who must live forever with the guilt of his loss. Over the centuries, Thackery (becoming known as Binx in his cat form) guarded the house to be sure no one would resurrect the sisters. He became familiar with modern technology and learned to talk. He is often sorrowful of the loss of his sister and bonds closely with Dani who likely reminds him of Emily. He finally passes away when the sisters are destroyed. He returns for a moment to assure Dani that he is finally at peace and leaves with Emily into the sunrise.
Character biographies taken from Wikipedia.