John Constantine is a fictional character.
Constantine is an American television series developed by Daniel Cerone and David S. Goyer for NBC , featuring the DC Comics character John Constantine . John Constantine . Empire ranked Constantine third in their 50 Greatest Comic Characters of All Time , while IGN ranked him No. 29 in their Top 100 Comic Book Heroes , and the character ranked No. 10 in Wizard '' s Top 200 Comic Book Characters of All Time . A protagonist is the main character in any story , such as a literary work or drama .