It isn't used anywhere in the main game, but is still fully functional and can be placed into maps via the level editor. The 'Sanity Potion', which restores the player's sanity by one level, similar to how Laudanum restores health.Dummied Out: Apparently, the character of Daniel's sister Hazel (though occasional references to her are still present in the above mentioned developer's commentary and in some late-game Loading Screen notes).Also counts as Significant Double Casting. Acting for Two: In Justine, Emily Corkery voices Justine and provides the grunts for the girl, when the game doesn't reuse Daniel's old sound effects.