Final answer:
Wiglaf is the one warrior who remained loyal to Beowulf during the final battle with the dragon, exemplifying true bravery and loyalty.
Step-by-step explanation:
The warrior who remained faithful to Beowulf is Wiglaf. In the epic poem 'Beowulf,' when Beowulf faces his last and fatal confrontation with the dragon, all of his warriors flee in fear except for one: Wiglaf. Demonstrating remarkable loyalty and courage, Wiglaf aids Beowulf in the battle against the dragon, standing by his side when no one else does.
Despite being younger and less experienced, Wiglaf's actions embody the ideals of comradeship and bravery. This is in stark contrast to the behavior of characters like Unferth, who earlier in the poem challenges Beowulf out of jealousy, and others who fall short of the heroic loyalty expected of them.