Societal norms and expectations play a significant role in shaping the actions of characters in a story or narrative. These norms set the standards for behavior, beliefs, and values within a society, influencing how characters perceive themselves and others. Characters may conform to or rebel against societal norms, leading to conflicts, character development, and plot progression. Overall, societal norms and expectations serve as a backdrop that helps to define and motivate the actions of characters within a story.