The Russian writers are especially confusing because many of the main characters have more than one name and they're used interchangeably throughout the story. In Crime and Punishment, you have Rodin Romanovich Raskolnikov, also known as Rodya and Rodka and there's his sister Avdotya Romanovna Raskolnikov, also known Dunya and Dunechka. You don't need a cheat sheet so much as a flow chart.