Types of Children in horror

The Innocent/Victim

 The innocent is either a child that is the text's antagonist/another source of conflict, usually AGAINST their own will or unknowingly to themselves (e.g. posession as with 'The Exorcist') or a child that is PURSUED BY the antagonist; victimising them.

The 'Devil Child'
One the most popular and controversial type of character in horror. It's considered tabboo by some- the genre has even been dubbed with the title of 'Devil Spawn movie', argueably dating back to the original 'Omen' films; the character of Damien Thorn was the Devil's son. They're the source of conflict- appearing to be innocent.

The Flipside

The Innocent might sometimes be juxtaposed to another character that serves as their alternative/parallel to themeselves (Alessa Gillespie from the film 'Silent Hill' for example, where two essentailly identical characters represent innocence and corruption respectively).

The Hero/Heroine

Quite uncommon; a child is the protagonist of the text (as with the film 'Child's Play') and is the one to contibute towards defeating/deafeats the antagonist/overcomes the conflict themselves.

Similar to the Innocent.

All of the above listed characteristics are not factual, they are my own rough interpretation of types of children in horror with both older and contemporary examples to support my point. The list is based purely on some of the films I have seen that belong to this genre and how I felt they were presented.