helper vs villain

helper

noun
  • That which helps; anything serving to assist. 

  • One who helps; an aide; assistant; auxiliary. 

  • A locomotive that assists a train, usually on steep gradients. 

  • A person who does cleaning and cooking in a family home, or in a market; domestic employee. 

villain

noun
  • A vile, wicked person. 

  • An extremely depraved person, or one capable or guilty of great crimes. 

  • Any opponent player, especially a hypothetical player for example and didactic purposes. Compare: hero (“the current player”). 

  • In fiction, a character who has the role of being bad, especially antagonizing the hero. 

  • A deliberate scoundrel. 

How often have the words helper and villain occurred in a corpus of books? (source: Google Ngram Viewer )