Character type

Protagonist - leads the narrative, usually looking for something (on a quest) or trying to solve something resulting In a happy ending.

Antagonist - the villain. 

Heroine - usually a prize or reward for the protagonist. 

Father - an authority figure to the protagonist who offers a reward to the hero for completing the quest, that reward may be a prince or princess.  

Helper - helps the hero and offend acts as a sidekick. 

Donor - helps the hero out in some way like getting a clue or a special power. 

Mentor - teaches and guides the hero. 

For example you can use this process for the film shrek... The protagonist would of course would be shrek himself; the antagonist lord farquaad; heroine Fiona; helper would be donkey; donor could be shrek himself again as he helps himself out and mentor donkey again

-RM