Westley is a fictional character from the novel "The Princess Bride," written by William Goldman. He is known for his intelligence, bravery, and unwavering love for Buttercup, the story's heroine. Initially a farm boy, Westley embarks on a quest to rescue Buttercup after she is kidnapped, showcasing his determination and resourcefulness. Throughout the story, Westley adopts various personas, including the Dread Pirate Roberts, to navigate challenges and confront adversaries. His character embodies themes of true love, adventure, and the triumph of good over evil, making him a memorable figure in both literature and film adaptations.