Beowulf theme good vs evil In many ways beowulf is a epic hero, who fights evil monsters. which is a conflict between a courageous, mighty, loyal warrior and the demons and dragons of hell itself. The main characters of Beowulf are beowulf himself and grendel the evil monster. Grendel was so tired of the war that has been going on, one night he sneaked in by the hall and killed 30 men which made people start leaving their homes because they weren’t safe. Once the brave warrior arrived he faces grendel