In the **myth of Beowulf**, the main antagonists are the monstrous figures of Grendel, Grendel's mother, and later, a dragon. Grendel represents chaos and evil, terrorizing the kingdom of Heorot, leading Beowulf, the epic hero, to confront him. Following Grendel's defeat, his mother seeks vengeance, showcasing the theme of retribution within the narrative. Finally, in Beowulf’s later years, he faces a dragon that threatens his kingdom, symbolizing the inevitability of conflict and mortality. Together, these antagonists illustrate the hero’s journey and the struggle against darkness in both personal and communal contexts.