Oscar of Astora is a noble knight from the action role-playing game series Dark Souls. Known for his courage and determination, Oscar plays a pivotal role in the early stages of the game. He is the one who provides the player with the Estus Flask, a crucial healing item, and he hints at the Undead's role in linking the Fire. Despite his brief appearance, Oscar's actions set the protagonist on their epic journey, embodying the themes of sacrifice and destiny prevalent throughout the series.