Hocus Pocus has captivated the hearts of millions for over 30 years and only continues to grow in popularity with each passing year. The film follows the Sanderson Sisters, a trio of unlikely witches who are hell bent on taking the lives of children and staying young forever. After being hanged in 1963, Winifred Sanderson uses her last few minutes to cast one last spell. 300 years later a trio of kids light the Black Flame Candle, which brings the witches back to Salem and now they must stop them taking the lives of all the children of Salem, before it's too late. 

The below descriptions of each Sanderson Sister are taken from the 1992 shooting script, so they are as accurate as they possibly can be. 

Winifred Sanderson is the eldest and by far the most powerful. Once beautiful, her beauty has been corrupted by evil, but she is still obsessively vain, and hates children for their youth and prettiness (in fact she can't say the words child or children without slightly gagging on them).
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Winifred has a serious anger problem; when she gets really furious it produces electrical energy which she then discharges on the objects of her wrath. 
She has immense skill with potions and spells, especially when she uses her beloved spell book. Her sisters drive her absolutely nuts. 

Mary Sanderson is the middle sister, she loves children. They're her favourite dish; she knows a million recipes. Mary's sense of smell is incredibly keen; she can follow the scent of a child like a bloodhound.
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Mary is a sneak, who misses no opportunity to suck up to her powerful sister Winnie, or to pick on her little sister Sarah.

Sarah Sanderson is the youngest, she's also the strange one. Wild and wood-nymphy in appearance, she is the seventeenth century evil flower child, who loves "to play".

Her sisters use her to lure their victims into their clutches. Sarah likes to torture things: small animals, children, bugs, you name it. Any suggestion of cruelty (to somebody else) sends her into a fit of idiotic laughter, while any fear for herself sends her into a screaming fit. She's a mess. 

Max Dennison has recently moved to Salem, after leaving Los Angeles. 
He hates Salem, but due to having a crush on Allison, tries to impress her by lighting the Black Flame Candle... it doesn't work out so well. 

Dani Dennison is Max's little sister, she's loud, annoying but also quite sweet. 
All she wants to do is go trick or treating, but thanks to her big brother showing off, the night doesn't go to plan. 

Allison is a classmate of Max. She comes from what appears to be a wealthy family and her Mother used to run the Sanderson Witch Museum.

Thackery Binx used to be a human... that was until the Sanderson Sisters turned him into a cat after trying to save his sister Emily. He's been protecting the Sanderson Museum for 300 years.

Billy Butcherson is an ex lover of Winifred Sanderson (although we discover in Hocus Pocus 2 it was only one kiss that they shared). Winifred poisoned him after finding him "sporting" with her sister Sarah. She then sewed his mouth shut with a dull needle, so he couldn't share her secrets, even in death. 

Winifred's beloved book. Made from human skin, the book contains Winifred's most powerful spells, including how to make the Life Potion Elixir and how to turn people into cats. 

In the original film, we're told by Allison that the book was given to Winifred by the Devil, however in the sequel it's discovered that Winifred was given the book by the 'Mother Witch' on her 16th birthday. 

The Black Flame Candle is made from the fat of a hanged man. It's a magical candle which when lit, can return those from the dead back to the land of the living, but only for as long as the candle is lit. 

Winifred's final spell states
"On All Hallow's Eve, When the Moon is round. A Virgin, will summon us from under the ground" and it's Max lighting the candle, that does just that.